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132968881 = 153186851
BaseRepresentation
bin1111110110011…
…11000110110001
3100021012112000101
413323033012301
5233020001011
621105552401
73203134243
oct773170661
9307175011
10132968881
116906a541
1238645701
1321717c16
1413934093
15ba182c1
hex7ecf1b1

132968881 has 4 divisors (see below), whose sum is σ = 133057264. Its totient is φ = 132880500.

The previous prime is 132968851. The next prime is 132968903. The reversal of 132968881 is 188869231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132968881 - 27 = 132968753 is a prime.

It is a super-2 number, since 2×1329688812 = 35361446628784322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132968851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41895 + ... + 44956.

It is an arithmetic number, because the mean of its divisors is an integer number (33264316).

Almost surely, 2132968881 is an apocalyptic number.

It is an amenable number.

132968881 is a deficient number, since it is larger than the sum of its proper divisors (88383).

132968881 is an equidigital number, since it uses as much as digits as its factorization.

132968881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88382.

The product of its digits is 165888, while the sum is 46.

The square root of 132968881 is about 11531.2133359851. The cubic root of 132968881 is about 510.4070580767.

The spelling of 132968881 in words is "one hundred thirty-two million, nine hundred sixty-eight thousand, eight hundred eighty-one".

Divisors: 1 1531 86851 132968881