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132157307 = 409323123
BaseRepresentation
bin1111110000010…
…00111101111011
3100012200021202002
413320020331323
5232313013212
621040331215
73163214162
oct770107573
9305607662
10132157307
1168665817
1238313b0b
13214c26b9
14137a23d9
15b907ac2
hex7e08f7b

132157307 has 4 divisors (see below), whose sum is σ = 132480840. Its totient is φ = 131833776.

The previous prime is 132157301. The next prime is 132157327. The reversal of 132157307 is 703751231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 132157307 - 26 = 132157243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132157307.

It is not an unprimeable number, because it can be changed into a prime (132157301) 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, 161153 + ... + 161970.

It is an arithmetic number, because the mean of its divisors is an integer number (33120210).

Almost surely, 2132157307 is an apocalyptic number.

132157307 is a deficient number, since it is larger than the sum of its proper divisors (323533).

132157307 is an equidigital number, since it uses as much as digits as its factorization.

132157307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323532.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 132157307 is about 11495.9691631458. The cubic root of 132157307 is about 509.3665170630.

The spelling of 132157307 in words is "one hundred thirty-two million, one hundred fifty-seven thousand, three hundred seven".

Divisors: 1 409 323123 132157307