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105897490 = 25101104849
BaseRepresentation
bin1100100111111…
…01111000010010
321101021011001021
412103331320102
5204102204430
614301430054
72424054016
oct623757022
9241234037
10105897490
115485a396
122b56b32a
1318c29c4a
14100c8546
15946c07a
hex64fde12

105897490 has 16 divisors (see below), whose sum is σ = 192504600. Its totient is φ = 41939200.

The previous prime is 105897481. The next prime is 105897503. The reversal of 105897490 is 94798501.

It can be written as a sum of positive squares in 4 ways, for example, as 88566921 + 17330569 = 9411^2 + 4163^2 .

It is a super-2 number, since 2×1058974902 = 22428556776600200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51415 + ... + 53434.

Almost surely, 2105897490 is an apocalyptic number.

105897490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105897490 is a deficient number, since it is larger than the sum of its proper divisors (86607110).

105897490 is a wasteful number, since it uses less digits than its factorization.

105897490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104957.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 105897490 is about 10290.6506111130. The cubic root of 105897490 is about 473.1097397743.

The spelling of 105897490 in words is "one hundred five million, eight hundred ninety-seven thousand, four hundred ninety".

Divisors: 1 2 5 10 101 202 505 1010 104849 209698 524245 1048490 10589749 21179498 52948745 105897490