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106920786 = 23717149749
BaseRepresentation
bin1100101111101…
…11101101010010
321110012010202010
412113313231102
5204332431121
614335403350
72435545260
oct627675522
9243163663
10106920786
1155399195
122b983556
13191c794b
14102b3430
1595c0376
hex65f7b52

106920786 has 32 divisors (see below), whose sum is σ = 258768000. Its totient is φ = 28751616.

The previous prime is 106920757. The next prime is 106920791. The reversal of 106920786 is 687029601.

It is a super-2 number, since 2×1069207862 = 22864108957715592, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74161 + ... + 75588.

It is an arithmetic number, because the mean of its divisors is an integer number (8086500).

Almost surely, 2106920786 is an apocalyptic number.

106920786 is an abundant number, since it is smaller than the sum of its proper divisors (151847214).

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

106920786 is a wasteful number, since it uses less digits than its factorization.

106920786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149778.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 106920786 is about 10340.2507706535. The cubic root of 106920786 is about 474.6287566469.

The spelling of 106920786 in words is "one hundred six million, nine hundred twenty thousand, seven hundred eighty-six".

Divisors: 1 2 3 6 7 14 17 21 34 42 51 102 119 238 357 714 149749 299498 449247 898494 1048243 2096486 2545733 3144729 5091466 6289458 7637199 15274398 17820131 35640262 53460393 106920786