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131916055 = 532218191
BaseRepresentation
bin1111101110011…
…10000100010111
3100012020000210211
413313032010113
5232232303210
621031230251
73161160625
oct767160427
9305200724
10131916055
1168510537
1238218387
132143994b
141373c515
15b8ab38a
hex7dce117

131916055 has 8 divisors (see below), whose sum is σ = 158367744. Its totient is φ = 105487200.

The previous prime is 131916053. The next prime is 131916077. The reversal of 131916055 is 550619131.

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

It is not a de Polignac number, because 131916055 - 21 = 131916053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131916053) 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, 12010 + ... + 20200.

It is an arithmetic number, because the mean of its divisors is an integer number (19795968).

Almost surely, 2131916055 is an apocalyptic number.

131916055 is a deficient number, since it is larger than the sum of its proper divisors (26451689).

131916055 is an equidigital number, since it uses as much as digits as its factorization.

131916055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11417.

The product of its (nonzero) digits is 4050, while the sum is 31.

The square root of 131916055 is about 11485.4714748677. The cubic root of 131916055 is about 509.0563802387.

The spelling of 131916055 in words is "one hundred thirty-one million, nine hundred sixteen thousand, fifty-five".

Divisors: 1 5 3221 8191 16105 40955 26383211 131916055