Base | Representation |
---|---|
bin | 11000100111000100… |
… | …01010001001000110 |
3 | 1021002210212210222100 |
4 | 30103202022021012 |
5 | 204024412422210 |
6 | 10023024212530 |
7 | 645264306006 |
oct | 142342121106 |
9 | 37083783870 |
10 | 13212623430 |
11 | 56701aa5a6 |
12 | 2688a6a146 |
13 | 1327458996 |
14 | 8d4ab6006 |
15 | 524e515c0 |
hex | 31388a246 |
13212623430 has 48 divisors (see below), whose sum is σ = 34935086160. Its totient is φ = 3463646784.
The previous prime is 13212623407. The next prime is 13212623443. The reversal of 13212623430 is 3432621231.
13212623430 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 2 + 623 + 4 + 30 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 13212623394 and 13212623403.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1238817 + ... + 1249436.
It is an arithmetic number, because the mean of its divisors is an integer number (727814295).
Almost surely, 213212623430 is an apocalyptic number.
13212623430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13212623430 is an abundant number, since it is smaller than the sum of its proper divisors (21722462730).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13212623430 is a wasteful number, since it uses less digits than its factorization.
13212623430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2488325 (or 2488322 counting only the distinct ones).
The product of its (nonzero) digits is 5184, while the sum is 27.
The spelling of 13212623430 in words is "thirteen billion, two hundred twelve million, six hundred twenty-three thousand, four hundred thirty".
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