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105387786030 = 23512012925001
BaseRepresentation
bin110001000100110011…
…0011111111100101110
3101002000122201020020110
41202021212133330232
53211313233123110
6120225310000450
710420415254332
oct1421146377456
9332018636213
10105387786030
114077072652a
12185121a6126
139c26ac4407
14515a8277c2
152b1c240a20
hex188999ff2e

105387786030 has 32 divisors (see below), whose sum is σ = 253141373088. Its totient is φ = 28080000000.

The previous prime is 105387786013. The next prime is 105387786043. The reversal of 105387786030 is 30687783501.

It is a super-2 number, since 2×1053877860302 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1426471 + ... + 1498530.

It is an arithmetic number, because the mean of its divisors is an integer number (7910667909).

Almost surely, 2105387786030 is an apocalyptic number.

105387786030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105387786030 is an abundant number, since it is smaller than the sum of its proper divisors (147753587058).

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

105387786030 is a wasteful number, since it uses less digits than its factorization.

105387786030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926212.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 105387786030 in words is "one hundred five billion, three hundred eighty-seven million, seven hundred eighty-six thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1201 2402 3603 6005 7206 12010 18015 36030 2925001 5850002 8775003 14625005 17550006 29250010 43875015 87750030 3512926201 7025852402 10538778603 17564631005 21077557206 35129262010 52693893015 105387786030