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13031232121230 = 2351986092655571
BaseRepresentation
bin1011110110100001000111…
…1101100010100110001110
31201010202212222020200020020
42331220101331202212032
53202000430410334410
643414244305203010
72513322036300411
oct275502175424616
951122788220206
1013031232121230
114174572899734
121565659330466
13736abc3b031b
14330a01d61b78
15178e8b543a70
hexbda11f6298e

13031232121230 has 64 divisors (see below), whose sum is σ = 32924843884800. Its totient is φ = 3291717104640.

The previous prime is 13031232121213. The next prime is 13031232121241. The reversal of 13031232121230 is 3212123213031.

It is a self number, because there is not a number n which added to its sum of digits gives 13031232121230.

It is a congruent number.

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, 3579345 + ... + 6234915.

It is an arithmetic number, because the mean of its divisors is an integer number (514450685700).

Almost surely, 213031232121230 is an apocalyptic number.

13031232121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13031232121230 is an abundant number, since it is smaller than the sum of its proper divisors (19893611763570).

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

13031232121230 is a wasteful number, since it uses less digits than its factorization.

13031232121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664209.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13031232121230 its reverse (3212123213031), we get a palindrome (16243355334261).

The spelling of 13031232121230 in words is "thirteen trillion, thirty-one billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 8609 17218 25827 43045 51654 86090 129135 163571 258270 327142 490713 817855 981426 1635710 2453565 2655571 4907130 5311142 7966713 13277855 15933426 26555710 39833565 50455849 79667130 100911698 151367547 252279245 302735094 504558490 756837735 1513675470 22861810739 45723621478 68585432217 114309053695 137170864434 228618107390 342927161085 434374404041 685854322170 868748808082 1303123212123 2171872020205 2606246424246 4343744040410 6515616060615 13031232121230