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131055513 = 373598427
BaseRepresentation
bin1111100111110…
…11111110011001
3100010121022100220
413303323332121
5232022234023
621000550253
73150645021
oct763737631
9303538326
10131055513
1167a82a46
1237a82389
13211c8054
1413596a81
15b78b3e3
hex7cfbf99

131055513 has 8 divisors (see below), whose sum is σ = 177134688. Its totient is φ = 86173344.

The previous prime is 131055503. The next prime is 131055523. The reversal of 131055513 is 315550131.

It is an interprime number because it is at equal distance from previous prime (131055503) and next prime (131055523).

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

It is not a de Polignac number, because 131055513 - 25 = 131055481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131055503) 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, 298995 + ... + 299432.

It is an arithmetic number, because the mean of its divisors is an integer number (22141836).

Almost surely, 2131055513 is an apocalyptic number.

It is an amenable number.

131055513 is a deficient number, since it is larger than the sum of its proper divisors (46079175).

131055513 is an equidigital number, since it uses as much as digits as its factorization.

131055513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598503.

The product of its (nonzero) digits is 1125, while the sum is 24.

The square root of 131055513 is about 11447.9479820621. The cubic root of 131055513 is about 507.9470373309.

The spelling of 131055513 in words is "one hundred thirty-one million, fifty-five thousand, five hundred thirteen".

Divisors: 1 3 73 219 598427 1795281 43685171 131055513