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674172693 = 3367372677
BaseRepresentation
bin101000001011110…
…000111100010101
31201222120112002000
4220023300330111
52340042011233
6150521505513
722464242025
oct5013607425
91658515060
10674172693
11316609a17
12169942299
13a989876c
1465773a85
153e2bed13
hex282f0f15

674172693 has 16 divisors (see below), whose sum is σ = 1013684160. Its totient is φ = 442739088.

The previous prime is 674172683. The next prime is 674172713. The reversal of 674172693 is 396271476.

It is not a de Polignac number, because 674172693 - 29 = 674172181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (674172613) 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, 184530 + ... + 188147.

It is an arithmetic number, because the mean of its divisors is an integer number (63355260).

Almost surely, 2674172693 is an apocalyptic number.

It is an amenable number.

674172693 is a deficient number, since it is larger than the sum of its proper divisors (339511467).

674172693 is a wasteful number, since it uses less digits than its factorization.

674172693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372753 (or 372747 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 674172693 is about 25964.8357013866. The cubic root of 674172693 is about 876.8467956393.

The spelling of 674172693 in words is "six hundred seventy-four million, one hundred seventy-two thousand, six hundred ninety-three".

Divisors: 1 3 9 27 67 201 603 1809 372677 1118031 3354093 10062279 24969359 74908077 224724231 674172693