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131055011 = 318574933
BaseRepresentation
bin1111100111110…
…11110110100011
3100010121021200022
413303323312203
5232022230021
621000544055
73150643403
oct763736643
9303537608
10131055011
1167a8262a
1237a8202b
13211c7a59
1413596803
15b78b1ab
hex7cfbda3

131055011 has 8 divisors (see below), whose sum is σ = 135467904. Its totient is φ = 126653760.

The previous prime is 131055007. The next prime is 131055017. The reversal of 131055011 is 110550131.

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 131055011 - 22 = 131055007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131055017) 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, 24101 + ... + 29033.

It is an arithmetic number, because the mean of its divisors is an integer number (16933488).

Almost surely, 2131055011 is an apocalyptic number.

131055011 is a deficient number, since it is larger than the sum of its proper divisors (4412893).

131055011 is an equidigital number, since it uses as much as digits as its factorization.

131055011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5821.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 131055011 is about 11447.9260567144. The cubic root of 131055011 is about 507.9463887769.

The spelling of 131055011 in words is "one hundred thirty-one million, fifty-five thousand, eleven".

Divisors: 1 31 857 4933 26567 152923 4227581 131055011