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131078088 = 233567427
BaseRepresentation
bin1111101000000…
…01011111001000
3100010122110100000
413310001133020
5232023444323
621001243000
73151100601
oct764013710
9303573300
10131078088
1167a989a9
1237a93460
13212053cb
14135a0da8
15b792e43
hex7d017c8

131078088 has 48 divisors (see below), whose sum is σ = 368156880. Its totient is φ = 43692048.

The previous prime is 131078083. The next prime is 131078089. The reversal of 131078088 is 880870131.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (131078083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31770 + ... + 35657.

It is an arithmetic number, because the mean of its divisors is an integer number (7669935).

Almost surely, 2131078088 is an apocalyptic number.

131078088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

131078088 is an abundant number, since it is smaller than the sum of its proper divisors (237078792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131078088 is an equidigital number, since it uses as much as digits as its factorization.

131078088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67448 (or 67432 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 131078088 is about 11448.9339241695. The cubic root of 131078088 is about 507.9762011708.

The spelling of 131078088 in words is "one hundred thirty-one million, seventy-eight thousand, eighty-eight".