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74712313 = 13191312309
BaseRepresentation
bin1000111010000…
…00010011111001
312012120210000201
410131000103321
5123111243223
611225202201
71565021104
oct435002371
9165523021
1074712313
113919a515
1221030361
131262b690
149ccb73b
15685bead
hex47404f9

74712313 has 16 divisors (see below), whose sum is σ = 85377600. Its totient is φ = 64808640.

The previous prime is 74712307. The next prime is 74712317. The reversal of 74712313 is 31321747.

It is not a de Polignac number, because 74712313 - 213 = 74704121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74712317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31203 + ... + 33511.

It is an arithmetic number, because the mean of its divisors is an integer number (5336100).

Almost surely, 274712313 is an apocalyptic number.

It is an amenable number.

74712313 is a deficient number, since it is larger than the sum of its proper divisors (10665287).

74712313 is a wasteful number, since it uses less digits than its factorization.

74712313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its digits is 3528, while the sum is 28.

The square root of 74712313 is about 8643.6284626307. The cubic root of 74712313 is about 421.1764314874.

The spelling of 74712313 in words is "seventy-four million, seven hundred twelve thousand, three hundred thirteen".

Divisors: 1 13 19 131 247 1703 2309 2489 30017 32357 43871 302479 570323 3932227 5747101 74712313