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674972913 = 31728794597
BaseRepresentation
bin101000001110110…
…100010011110001
31202001002011202210
4220032310103301
52340243113123
6150551002333
722504114026
oct5016642361
91661064683
10674972913
1131700615a
1216a0693a9
13a9ab8a74
146590154d
153e3cbe93
hex283b44f1

674972913 has 16 divisors (see below), whose sum is σ = 953441280. Its totient is φ = 423273216.

The previous prime is 674972899. The next prime is 674972933. The reversal of 674972913 is 319279476.

It is a happy number.

It is not a de Polignac number, because 674972913 - 24 = 674972897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (674972933) 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, 144531 + ... + 149127.

It is an arithmetic number, because the mean of its divisors is an integer number (59590080).

Almost surely, 2674972913 is an apocalyptic number.

It is an amenable number.

674972913 is a deficient number, since it is larger than the sum of its proper divisors (278468367).

674972913 is a wasteful number, since it uses less digits than its factorization.

674972913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7496.

The product of its digits is 571536, while the sum is 48.

The square root of 674972913 is about 25980.2408187453. The cubic root of 674972913 is about 877.1935875486.

The spelling of 674972913 in words is "six hundred seventy-four million, nine hundred seventy-two thousand, nine hundred thirteen".

Divisors: 1 3 17 51 2879 4597 8637 13791 48943 78149 146829 234447 13234763 39704289 224990971 674972913