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147664313 = 712720719
BaseRepresentation
bin10001100110100…
…10110110111001
3101021212010100122
420303102312321
5300300224223
622352543025
73442061126
oct1063226671
9337763318
10147664313
1176397425
1241551a75
1324791a44
141587b74d
15ce6c5c8
hex8cd2db9

147664313 has 4 divisors (see below), whose sum is σ = 147692160. Its totient is φ = 147636468.

The previous prime is 147664303. The next prime is 147664331. The reversal of 147664313 is 313466741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313466741 = 744780963.

It is a cyclic number.

It is not a de Polignac number, because 147664313 - 26 = 147664249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147664303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3233 + ... + 17486.

It is an arithmetic number, because the mean of its divisors is an integer number (36923040).

Almost surely, 2147664313 is an apocalyptic number.

It is an amenable number.

147664313 is a deficient number, since it is larger than the sum of its proper divisors (27847).

147664313 is an equidigital number, since it uses as much as digits as its factorization.

147664313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27846.

The product of its digits is 36288, while the sum is 35.

The square root of 147664313 is about 12151.7205777618. The cubic root of 147664313 is about 528.5570254484.

The spelling of 147664313 in words is "one hundred forty-seven million, six hundred sixty-four thousand, three hundred thirteen".

Divisors: 1 7127 20719 147664313