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13215511230 = 235479372703
BaseRepresentation
bin11000100111011010…
…01011001010111110
31021010000022112021220
430103231023022332
5204031132324410
610023210134210
7645330664155
oct142355131276
937100275256
1013215511230
1156718a2209
122689a21366
131327c2a23c
148d522859c
15525322070
hex313b4b2be

13215511230 has 32 divisors (see below), whose sum is σ = 32392065024. Its totient is φ = 3449154336.

The previous prime is 13215511229. The next prime is 13215511247. The reversal of 13215511230 is 3211551231.

13215511230 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×132155112302 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13215511230.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4684942 + ... + 4687761.

It is an arithmetic number, because the mean of its divisors is an integer number (1012252032).

Almost surely, 213215511230 is an apocalyptic number.

13215511230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13215511230 is an abundant number, since it is smaller than the sum of its proper divisors (19176553794).

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

13215511230 is a wasteful number, since it uses less digits than its factorization.

13215511230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9372760.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 13215511230 in words is "thirteen billion, two hundred fifteen million, five hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 9372703 18745406 28118109 46863515 56236218 93727030 140590545 281181090 440517041 881034082 1321551123 2202585205 2643102246 4405170410 6607755615 13215511230