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103311031230 = 23451167173059
BaseRepresentation
bin110000000110111010…
…0010011101110111110
3100212122220221011020000
41200031310103232332
53143040110444410
6115243241535130
710315100163531
oct1401564235676
9325586834200
10103311031230
113a8a5424950
12180327a44a6
139985784b14
145000aaca18
152a49c6adc0
hex180dd13bbe

103311031230 has 160 divisors (see below), whose sum is σ = 307570538880. Its totient is φ = 24671148480.

The previous prime is 103311031207. The next prime is 103311031247. The reversal of 103311031230 is 32130113301.

It is a happy number.

103311031230 is a `hidden beast` number, since 1 + 0 + 331 + 103 + 1 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 510441 + ... + 683499.

It is an arithmetic number, because the mean of its divisors is an integer number (1922315868).

Almost surely, 2103311031230 is an apocalyptic number.

103311031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103311031230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153785269440).

103311031230 is an abundant number, since it is smaller than the sum of its proper divisors (204259507650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103311031230 is a wasteful number, since it uses less digits than its factorization.

103311031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173156 (or 173147 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 103311031230 its reverse (32130113301), we get a palindrome (135441144531).

The spelling of 103311031230 in words is "one hundred three billion, three hundred eleven million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 67 81 90 99 110 134 135 162 165 198 201 270 297 330 335 402 405 495 594 603 670 737 810 891 990 1005 1206 1474 1485 1782 1809 2010 2211 2970 3015 3618 3685 4422 4455 5427 6030 6633 7370 8910 9045 10854 11055 13266 18090 19899 22110 27135 33165 39798 54270 59697 66330 99495 119394 173059 198990 298485 346118 519177 596970 865295 1038354 1557531 1730590 1903649 2595885 3115062 3807298 4672593 5191770 5710947 7787655 9345186 9518245 11421894 11594953 14017779 15575310 17132841 19036490 23189906 23362965 28035558 28554735 34265682 34784859 46725930 51398523 57109470 57974765 69569718 70088895 85664205 102797046 104354577 115949530 127544483 140177790 154195569 171328410 173924295 208709154 255088966 256992615 308391138 313063731 347848590 382633449 513985230 521772885 626127462 637722415 765266898 770977845 939191193 1043545770 1147900347 1275444830 1541955690 1565318655 1878382386 1913167245 2295800694 3130637310 3443701041 3826334490 4695955965 5739501735 6887402082 9391911930 10331103123 11479003470 17218505205 20662206246 34437010410 51655515615 103311031230