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131672057 = 1122375351
BaseRepresentation
bin1111101100100…
…10011111111001
3100011202122002212
413312102133321
5232202001212
621022104505
73156123356
oct766223771
9304678085
10131672057
1168364190
123811b135
132138287a
14136b762d
15b85de22
hex7d927f9

131672057 has 8 divisors (see below), whose sum is σ = 143733312. Its totient is φ = 119626000.

The previous prime is 131672053. The next prime is 131672069. The reversal of 131672057 is 750276131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131672057 - 22 = 131672053 is a prime.

It is a super-2 number, since 2×1316720572 = 34675061189222498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131672053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21932 + ... + 27282.

It is an arithmetic number, because the mean of its divisors is an integer number (17966664).

Almost surely, 2131672057 is an apocalyptic number.

It is an amenable number.

131672057 is a deficient number, since it is larger than the sum of its proper divisors (12061255).

131672057 is a wasteful number, since it uses less digits than its factorization.

131672057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7599.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 131672057 is about 11474.8445305372. The cubic root of 131672057 is about 508.7423285029.

The spelling of 131672057 in words is "one hundred thirty-one million, six hundred seventy-two thousand, fifty-seven".

Divisors: 1 11 2237 5351 24607 58861 11970187 131672057