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12432044044 = 227444001573
BaseRepresentation
bin10111001010000000…
…11111000000001100
31012002102002021100201
423211000133000030
5200430100402134
65413341503244
7620035426240
oct134500370014
935072067321
1012432044044
1152aa623772
1224ab571b24
1312318155a4
1485d164420
154cb663914
hex2e501f00c

12432044044 has 12 divisors (see below), whose sum is σ = 24864088144. Its totient is φ = 5328018864.

The previous prime is 12432044041. The next prime is 12432044063. The reversal of 12432044044 is 44044023421.

12432044044 is an admirable number.

It is a super-2 number, since 2×124320440442 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 444001573 = 12432044044 / (1 + 2 + 4 + 3 + 2 + 0 + 4 + 4 + 0 + 4 + 4).

It is not an unprimeable number, because it can be changed into a prime (12432044041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 222000759 + ... + 222000814.

Almost surely, 212432044044 is an apocalyptic number.

12432044044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12432044044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12432044044 is a wasteful number, since it uses less digits than its factorization.

12432044044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444001584 (or 444001582 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12432044044 its reverse (44044023421), we get a palindrome (56476067465).

The spelling of 12432044044 in words is "twelve billion, four hundred thirty-two million, forty-four thousand, forty-four".

Divisors: 1 2 4 7 14 28 444001573 888003146 1776006292 3108011011 6216022022 12432044044