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1030031122340 = 22511171237222643
BaseRepresentation
bin11101111110100101010…
…00111001111110100100
310122110200122021111200102
432333102220321332210
5113334000431403330
62105104553403232
7134263063036403
oct16772250717644
93573618244612
101030031122340
11367919796670
12147763409518
1376192c3970c
1437bd4a7363a
151bbd7e8b945
hexefd2a39fa4

1030031122340 has 96 divisors (see below), whose sum is σ = 2500545043584. Its totient is φ = 352237455360.

The previous prime is 1030031122339. The next prime is 1030031122469. The reversal of 1030031122340 is 432211300301.

It is a super-2 number, since 2×10300311223402 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4515059 + ... + 4737701.

It is an arithmetic number, because the mean of its divisors is an integer number (26047344204).

Almost surely, 21030031122340 is an apocalyptic number.

1030031122340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1030031122340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1250272521792).

1030031122340 is an abundant number, since it is smaller than the sum of its proper divisors (1470513921244).

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

1030031122340 is a wasteful number, since it uses less digits than its factorization.

1030031122340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223917 (or 223915 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1030031122340 its reverse (432211300301), we get a palindrome (1462242422641).

The spelling of 1030031122340 in words is "one trillion, thirty billion, thirty-one million, one hundred twenty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1237 1870 2474 3740 4948 6185 12370 13607 21029 24740 27214 42058 54428 68035 84116 105145 136070 210290 222643 231319 272140 420580 445286 462638 890572 925276 1113215 1156595 2226430 2313190 2449073 3784931 4452860 4626380 4898146 7569862 9796292 12245365 15139724 18924655 24490730 37849310 41634241 48981460 75698620 83268482 166536964 208171205 275409391 416342410 550818782 832684820 1101637564 1377046955 2754093910 3029503301 4681959647 5508187820 6059006602 9363919294 12118013204 15147516505 18727838588 23409798235 30295033010 46819596470 51501556117 60590066020 93639192940 103003112234 206006224468 257507780585 515015561170 1030031122340