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131572041 = 343857347
BaseRepresentation
bin1111101011110…
…10000101001001
3100011120112220120
413311322011021
5232140301131
621020013453
73155225646
oct765720511
9304515816
10131572041
11682a6027
1238091289
13213491a3
141368cdcd
15b83e496
hex7d7a149

131572041 has 4 divisors (see below), whose sum is σ = 175429392. Its totient is φ = 87714692.

The previous prime is 131572031. The next prime is 131572057. The reversal of 131572041 is 140275131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131572041 - 211 = 131569993 is a prime.

It is a super-2 number, since 2×1315720412 = 34622403945811362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131572031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21928671 + ... + 21928676.

It is an arithmetic number, because the mean of its divisors is an integer number (43857348).

Almost surely, 2131572041 is an apocalyptic number.

It is an amenable number.

131572041 is a deficient number, since it is larger than the sum of its proper divisors (43857351).

131572041 is an equidigital number, since it uses as much as digits as its factorization.

131572041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43857350.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 131572041 is about 11470.4856479575. The cubic root of 131572041 is about 508.6134850148.

The spelling of 131572041 in words is "one hundred thirty-one million, five hundred seventy-two thousand, forty-one".

Divisors: 1 3 43857347 131572041