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1231052232 = 233122341941
BaseRepresentation
bin100100101100000…
…0101110111001000
310011210102221012010
41021120011313020
510010122132412
6322053415520
742335525364
oct11130056710
93153387163
101231052232
11581995843
122a433a5a0
13168077397
14b96d42a4
157312133c
hex49605dc8

1231052232 has 32 divisors (see below), whose sum is σ = 3080220480. Its totient is φ = 410005440.

The previous prime is 1231052231. The next prime is 1231052239. The reversal of 1231052232 is 2322501321.

It is a junction number, because it is equal to n+sod(n) for n = 1231052199 and 1231052208.

It is not an unprimeable number, because it can be changed into a prime (1231052231) 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 7 ways as a sum of consecutive naturals, for example, 8382 + ... + 50322.

It is an arithmetic number, because the mean of its divisors is an integer number (96256890).

Almost surely, 21231052232 is an apocalyptic number.

1231052232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231052232 is an abundant number, since it is smaller than the sum of its proper divisors (1849168248).

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

1231052232 is a wasteful number, since it uses less digits than its factorization.

1231052232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43173 (or 43169 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1231052232 is about 35086.3539285575. The cubic root of 1231052232 is about 1071.7467123614.

Adding to 1231052232 its reverse (2322501321), we get a palindrome (3553553553).

The spelling of 1231052232 in words is "one billion, two hundred thirty-one million, fifty-two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 1223 2446 3669 4892 7338 9784 14676 29352 41941 83882 125823 167764 251646 335528 503292 1006584 51293843 102587686 153881529 205175372 307763058 410350744 615526116 1231052232