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105813888 = 2731914503
BaseRepresentation
bin1100100111010…
…01011110000000
321101002220100220
412103221132000
5204042021023
614255543040
72423255205
oct623513600
9241086326
10105813888
11548025a4
122b52aa80
1318bcab8b
14100a5cac
1594523e3
hex64e9780

105813888 has 64 divisors (see below), whose sum is σ = 295881600. Its totient is φ = 33412608.

The previous prime is 105813887. The next prime is 105813901. The reversal of 105813888 is 888318501.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1058138882 = 22393157787353088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105813887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45 + ... + 14547.

It is an arithmetic number, because the mean of its divisors is an integer number (4623150).

Almost surely, 2105813888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105813888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147940800).

105813888 is an abundant number, since it is smaller than the sum of its proper divisors (190067712).

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

105813888 is a wasteful number, since it uses less digits than its factorization.

105813888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14539 (or 14527 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The square root of 105813888 is about 10286.5877724346. The cubic root of 105813888 is about 472.9852063426.

The spelling of 105813888 in words is "one hundred five million, eight hundred thirteen thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 64 76 96 114 128 152 192 228 304 384 456 608 912 1216 1824 2432 3648 7296 14503 29006 43509 58012 87018 116024 174036 232048 275557 348072 464096 551114 696144 826671 928192 1102228 1392288 1653342 1856384 2204456 2784576 3306684 4408912 5569152 6613368 8817824 13226736 17635648 26453472 35271296 52906944 105813888