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634674 = 23139761
BaseRepresentation
bin10011010111100110010
31012020121110
42122330302
5130302144
621334150
75252235
oct2327462
91166543
10634674
113a3927
12267356
13192b61
1412741c
15c80b9
hex9af32

634674 has 16 divisors (see below), whose sum is σ = 1280160. Its totient is φ = 209760.

The previous prime is 634651. The next prime is 634679. The reversal of 634674 is 476436.

It is a super-2 number, since 2×6346742 = 805622172552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (634679) by changing a digit.

634674 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454 + ... + 1214.

It is an arithmetic number, because the mean of its divisors is an integer number (80010).

2634674 is an apocalyptic number.

634674 is an abundant number, since it is smaller than the sum of its proper divisors (645486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

634674 is a wasteful number, since it uses less digits than its factorization.

634674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 12096, while the sum is 30.

The square root of 634674 is about 796.6642956729. The cubic root of 634674 is about 85.9376689143.

The spelling of 634674 in words is "six hundred thirty-four thousand, six hundred seventy-four".

Divisors: 1 2 3 6 139 278 417 761 834 1522 2283 4566 105779 211558 317337 634674