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105861286 = 252930643
BaseRepresentation
bin1100100111101…
…01000010100110
321101012022101101
412103311002212
5204100030121
614300550314
72423543326
oct623650246
9241168341
10105861286
1154835173
122b55239a
1318c1661b
14100b9286
159461491
hex64f50a6

105861286 has 4 divisors (see below), whose sum is σ = 158791932. Its totient is φ = 52930642.

The previous prime is 105861277. The next prime is 105861307. The reversal of 105861286 is 682168501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1058612862 = 22413223747147592, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 26465320 + ... + 26465323.

It is an arithmetic number, because the mean of its divisors is an integer number (39697983).

Almost surely, 2105861286 is an apocalyptic number.

105861286 is a deficient number, since it is larger than the sum of its proper divisors (52930646).

105861286 is an equidigital number, since it uses as much as digits as its factorization.

105861286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52930645.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 105861286 is about 10288.8913882886. The cubic root of 105861286 is about 473.0558183914.

The spelling of 105861286 in words is "one hundred five million, eight hundred sixty-one thousand, two hundred eighty-six".

Divisors: 1 2 52930643 105861286