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1231044132 = 223540718973
BaseRepresentation
bin100100101100000…
…0011111000100100
310011210102112002010
41021120003320210
510010121403012
6322053314220
742335462643
oct11130037044
93153375063
101231044132
1158198a74a
122a4335970
131680737a6
14b96d135a
157311dc3c
hex49603e24

1231044132 has 24 divisors (see below), whose sum is σ = 2873118976. Its totient is φ = 410250528.

The previous prime is 1231044107. The next prime is 1231044149. The reversal of 1231044132 is 2314401321.

It is a junction number, because it is equal to n+sod(n) for n = 1231044099 and 1231044108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55398 + ... + 74370.

Almost surely, 21231044132 is an apocalyptic number.

1231044132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231044132 is an abundant number, since it is smaller than the sum of its proper divisors (1642074844).

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

1231044132 is a wasteful number, since it uses less digits than its factorization.

1231044132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24387 (or 24385 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1231044132 is about 35086.2384988759. The cubic root of 1231044132 is about 1071.7443617524.

Adding to 1231044132 its reverse (2314401321), we get a palindrome (3545445453).

The spelling of 1231044132 in words is "one billion, two hundred thirty-one million, forty-four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 5407 10814 16221 18973 21628 32442 37946 56919 64884 75892 113838 227676 102587011 205174022 307761033 410348044 615522066 1231044132