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13885803630 = 23251923711551
BaseRepresentation
bin11001110111010100…
…01000110001101110
31022211201120220121100
430323222020301232
5211414231204010
610213512543530
71001050245336
oct147352106156
938751526540
1013885803630
1159861a0876
1228363b1ba6
131403a6776a
1495a26c0c6
155640c72c0
hex33ba88c6e

13885803630 has 144 divisors (see below), whose sum is σ = 39136466304. Its totient is φ = 3412886400.

The previous prime is 13885803623. The next prime is 13885803691. The reversal of 13885803630 is 3630858831.

13885803630 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 5 + 8 + 0 + 3 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1196355 + ... + 1207905.

It is an arithmetic number, because the mean of its divisors is an integer number (271781016).

Almost surely, 213885803630 is an apocalyptic number.

13885803630 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 13885803630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19568233152).

13885803630 is an abundant number, since it is smaller than the sum of its proper divisors (25250662674).

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

13885803630 is a wasteful number, since it uses less digits than its factorization.

13885803630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639 (or 11617 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 13885803630 in words is "thirteen billion, eight hundred eighty-five million, eight hundred three thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 19 30 37 38 45 57 74 90 95 111 114 171 185 190 222 285 333 342 361 370 555 570 666 703 722 855 1083 1110 1406 1665 1710 1805 2109 2166 3249 3330 3515 3610 4218 5415 6327 6498 7030 10545 10830 11551 12654 13357 16245 21090 23102 26714 31635 32490 34653 40071 57755 63270 66785 69306 80142 103959 115510 120213 133570 173265 200355 207918 219469 240426 346530 400710 427387 438938 519795 601065 658407 854774 1039590 1097345 1202130 1282161 1316814 1975221 2136935 2194690 2564322 3292035 3846483 3950442 4169911 4273870 6410805 6584070 7692966 8120353 8339822 9876105 12509733 12821610 16240706 19232415 19752210 20849555 24361059 25019466 37529199 38464830 40601765 41699110 48722118 62548665 73083177 75058398 81203530 121805295 125097330 146166354 154286707 187645995 243610590 308573414 365415885 375291990 462860121 730831770 771433535 925720242 1388580363 1542867070 2314300605 2777160726 4628601210 6942901815 13885803630