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131267252 = 2232816813
BaseRepresentation
bin1111101001011…
…11101010110100
3100011000001211002
413310233222310
5232101023002
621005302432
73152516234
oct764575264
9304001732
10131267252
1168108036
1237b64a18
132127053c
141360dcc4
15b7ce002
hex7d2fab4

131267252 has 6 divisors (see below), whose sum is σ = 229717698. Its totient is φ = 65633624.

The previous prime is 131267249. The next prime is 131267263. The reversal of 131267252 is 252762131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 111429136 + 19838116 = 10556^2 + 4454^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16408403 + ... + 16408410.

It is an arithmetic number, because the mean of its divisors is an integer number (38286283).

Almost surely, 2131267252 is an apocalyptic number.

It is an amenable number.

131267252 is a deficient number, since it is larger than the sum of its proper divisors (98450446).

131267252 is a wasteful number, since it uses less digits than its factorization.

131267252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32816817 (or 32816815 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 131267252 is about 11457.1921516574. The cubic root of 131267252 is about 508.2204439334.

The spelling of 131267252 in words is "one hundred thirty-one million, two hundred sixty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 32816813 65633626 131267252