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103231021230220 = 225131512938974129
BaseRepresentation
bin10111011110001101011000…
…010110011010100010001100
3111112111210022100210021002211
4113132031120112122202030
5102012314112413331340
61003315402041000204
730513123640354642
oct2736153026324214
9445453270707084
10103231021230220
112a9900372914a4
12b6b2a44183064
13457a849abb630
141b6c59db0b192
15be0420a885ea
hex5de35859a88c

103231021230220 has 96 divisors (see below), whose sum is σ = 235809121806720. Its totient is φ = 37734413414400.

The previous prime is 103231021230131. The next prime is 103231021230317. The reversal of 103231021230220 is 22032120132301.

It is a junction number, because it is equal to n+sod(n) for n = 103231021230191 and 103231021230200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7016116 + ... + 15990244.

It is an arithmetic number, because the mean of its divisors is an integer number (2456345018820).

Almost surely, 2103231021230220 is an apocalyptic number.

103231021230220 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 103231021230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117904560903360).

103231021230220 is an abundant number, since it is smaller than the sum of its proper divisors (132578100576500).

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

103231021230220 is a wasteful number, since it uses less digits than its factorization.

103231021230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8974595 (or 8974593 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 103231021230220 its reverse (22032120132301), we get a palindrome (125263141362521).

The spelling of 103231021230220 in words is "one hundred three trillion, two hundred thirty-one billion, twenty-one million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 151 260 293 302 586 604 755 1172 1465 1510 1963 2930 3020 3809 3926 5860 7618 7852 9815 15236 19045 19630 38090 39260 44243 76180 88486 176972 221215 442430 575159 884860 1150318 2300636 2875795 5751590 8974129 11503180 17948258 35896516 44870645 89741290 116663677 179482580 233327354 466654708 583318385 1166636770 1355093479 2333273540 2629419797 2710186958 5258839594 5420373916 6775467395 10517679188 13147098985 13550934790 17616215227 26294197970 27101869580 34182457361 35232430454 52588395940 68364914722 70464860908 88081076135 136729829444 170912286805 176162152270 341824573610 352324304540 397042389347 683649147220 794084778694 1588169557388 1985211946735 3970423893470 5161551061511 7940847786940 10323102123022 20646204246044 25807755307555 51615510615110 103231021230220