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12320411432 = 237231429621
BaseRepresentation
bin10110111100101101…
…01000111100101000
31011210122000202012112
423132112220330220
5200213011131212
65354313101452
7614211524600
oct133626507450
934718022175
1012320411432
11525260750a
12247a0b7888
13121465b0a4
1484c3c5c00
154c1962422
hex2de5a8f28

12320411432 has 24 divisors (see below), whose sum is σ = 26872326810. Its totient is φ = 5280176160.

The previous prime is 12320411401. The next prime is 12320411489. The reversal of 12320411432 is 23411402321.

It can be written as a sum of positive squares in only one way, i.e., 12204504676 + 115906756 = 110474^2 + 10766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12320411398 and 12320411407.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15714419 + ... + 15715202.

Almost surely, 212320411432 is an apocalyptic number.

It is an amenable number.

12320411432 is an abundant number, since it is smaller than the sum of its proper divisors (14551915378).

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

12320411432 is a wasteful number, since it uses less digits than its factorization.

12320411432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31429641 (or 31429630 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12320411432 its reverse (23411402321), we get a palindrome (35731813753).

The spelling of 12320411432 in words is "twelve billion, three hundred twenty million, four hundred eleven thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 31429621 62859242 125718484 220007347 251436968 440014694 880029388 1540051429 1760058776 3080102858 6160205716 12320411432