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12433436472 = 2331730474109
BaseRepresentation
bin10111001010001011…
…10010111100111000
31012002111201000102010
423211011302330320
5200430424431342
65413431405520
7620053315632
oct134505627470
935074630363
1012433436472
115300394936
1224abb238a0
131231bb2302
1485d407a52
154cb83b29c
hex2e5172f38

12433436472 has 32 divisors (see below), whose sum is σ = 32912038800. Its totient is φ = 3900685824.

The previous prime is 12433436471. The next prime is 12433436501. The reversal of 12433436472 is 27463433421.

It is a self number, because there is not a number n which added to its sum of digits gives 12433436472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12433436471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15236647 + ... + 15237462.

Almost surely, 212433436472 is an apocalyptic number.

12433436472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12433436472 is an abundant number, since it is smaller than the sum of its proper divisors (20478602328).

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

12433436472 is a wasteful number, since it uses less digits than its factorization.

12433436472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30474135 (or 30474131 counting only the distinct ones).

The product of its digits is 290304, while the sum is 39.

Adding to 12433436472 its reverse (27463433421), we get a palindrome (39896869893).

The spelling of 12433436472 in words is "twelve billion, four hundred thirty-three million, four hundred thirty-six thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 30474109 60948218 91422327 121896436 182844654 243792872 365689308 518059853 731378616 1036119706 1554179559 2072239412 3108359118 4144478824 6216718236 12433436472