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131807127 = 3431101939
BaseRepresentation
bin1111101101100…
…11011110010111
3100012000111101110
413312303132113
5232220312002
621025030103
73160225224
oct766633627
9305014343
10131807127
1168446711
1238185333
13213cc1aa
141371094b
15b888e6c
hex7db3797

131807127 has 8 divisors (see below), whose sum is σ = 176152320. Its totient is φ = 87666680.

The previous prime is 131807111. The next prime is 131807141. The reversal of 131807127 is 721708131.

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 131807127 - 24 = 131807111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131807094 and 131807103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131807177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49677 + ... + 52262.

It is an arithmetic number, because the mean of its divisors is an integer number (22019040).

Almost surely, 2131807127 is an apocalyptic number.

131807127 is a deficient number, since it is larger than the sum of its proper divisors (44345193).

131807127 is a wasteful number, since it uses less digits than its factorization.

131807127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102373.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 131807127 is about 11480.7285047596. The cubic root of 131807127 is about 508.9162260503.

The spelling of 131807127 in words is "one hundred thirty-one million, eight hundred seven thousand, one hundred twenty-seven".

Divisors: 1 3 431 1293 101939 305817 43935709 131807127