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168387934 = 211134712527
BaseRepresentation
bin10100000100101…
…10010101011110
3102201211222211011
422002112111132
5321101403214
624413045434
74113162631
oct1202262536
9381758734
10168387934
1187061390
124848687a
1328b69640
1418513c18
15ebb2ac4
hexa09655e

168387934 has 32 divisors (see below), whose sum is σ = 303077376. Its totient is φ = 69143520.

The previous prime is 168387929. The next prime is 168387953. The reversal of 168387934 is 439783861.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7179 + ... + 19705.

It is an arithmetic number, because the mean of its divisors is an integer number (9471168).

Almost surely, 2168387934 is an apocalyptic number.

168387934 is a deficient number, since it is larger than the sum of its proper divisors (134689442).

168387934 is a wasteful number, since it uses less digits than its factorization.

168387934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12600.

The product of its digits is 870912, while the sum is 49.

The square root of 168387934 is about 12976.4376467504. The cubic root of 168387934 is about 552.2092232686.

The spelling of 168387934 in words is "one hundred sixty-eight million, three hundred eighty-seven thousand, nine hundred thirty-four".

Divisors: 1 2 11 13 22 26 47 94 143 286 517 611 1034 1222 6721 12527 13442 25054 137797 162851 275594 325702 588769 1177538 1791361 3582722 6476459 7653997 12952918 15307994 84193967 168387934