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105912269768 = 231150612
BaseRepresentation
bin110001010100011011…
…1001111101111001000
3101010101012121202200002
41202220313033233020
53213402020113033
6120353323302132
710436414303414
oct1425067175710
9333335552602
10105912269768
1140a0a795968
121863997a948
139cab66c716
1451aa353d44
152b4d2e33e8
hex18a8dcfbc8

105912269768 has 12 divisors (see below), whose sum is σ = 198587231745. Its totient is φ = 52955674640.

The previous prime is 105912269719. The next prime is 105912269777. The reversal of 105912269768 is 867962219501.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 89569715524 + 16342554244 = 299282^2 + 127838^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=230122.

It is a super-2 number, since 2×1059122697682 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 862958 + ... + 978018.

Almost surely, 2105912269768 is an apocalyptic number.

It is an amenable number.

105912269768 is a deficient number, since it is larger than the sum of its proper divisors (92674961977).

105912269768 is an frugal number, since it uses more digits than its factorization.

105912269768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230128 (or 115063 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 105912269768 in words is "one hundred five billion, nine hundred twelve million, two hundred sixty-nine thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 115061 230122 460244 920488 13239033721 26478067442 52956134884 105912269768