Search a number
-
+
12431420364 = 2231194177427
BaseRepresentation
bin10111001001111100…
…00110101111001100
31012002100220120211110
423210332012233030
5200424420422424
65413320252020
7620030221026
oct134476065714
935070816743
1012431420364
1152aa238130
1224ab311010
13123165774c
1485d041016
154cb58dc29
hex2e4f86bcc

12431420364 has 24 divisors (see below), whose sum is σ = 31643615808. Its totient is φ = 3767097040.

The previous prime is 12431420341. The next prime is 12431420369. The reversal of 12431420364 is 46302413421.

It is not an unprimeable number, because it can be changed into a prime (12431420369) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 47088582 + ... + 47088845.

It is an arithmetic number, because the mean of its divisors is an integer number (1318483992).

Almost surely, 212431420364 is an apocalyptic number.

It is an amenable number.

12431420364 is an abundant number, since it is smaller than the sum of its proper divisors (19212195444).

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

12431420364 is a wasteful number, since it uses less digits than its factorization.

12431420364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94177445 (or 94177443 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 12431420364 its reverse (46302413421), we get a palindrome (58733833785).

The spelling of 12431420364 in words is "twelve billion, four hundred thirty-one million, four hundred twenty thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 94177427 188354854 282532281 376709708 565064562 1035951697 1130129124 2071903394 3107855091 4143806788 6215710182 12431420364