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105158730 = 23519184489
BaseRepresentation
bin1100100010010…
…01100001001010
321022212121122210
412101021201022
5203410034410
614233525550
72414556135
oct621114112
9238777583
10105158730
11543a5346
122b2738b6
1318a2b901
14dd7521c
159373220
hex644984a

105158730 has 32 divisors (see below), whose sum is σ = 265665600. Its totient is φ = 26566272.

The previous prime is 105158701. The next prime is 105158743. The reversal of 105158730 is 37851501.

It is a super-2 number, since 2×1051587302 = 22116716990425800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91675 + ... + 92814.

It is an arithmetic number, because the mean of its divisors is an integer number (8302050).

Almost surely, 2105158730 is an apocalyptic number.

105158730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105158730 is an abundant number, since it is smaller than the sum of its proper divisors (160506870).

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

105158730 is a wasteful number, since it uses less digits than its factorization.

105158730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184518.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 105158730 is about 10254.6930719549. The cubic root of 105158730 is about 472.0070051867.

The spelling of 105158730 in words is "one hundred five million, one hundred fifty-eight thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 184489 368978 553467 922445 1106934 1844890 2767335 3505291 5534670 7010582 10515873 17526455 21031746 35052910 52579365 105158730