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105814872 = 233210114551
BaseRepresentation
bin1100100111010…
…01101101011000
321101002221201100
412103221231120
5204042033442
614255551400
72423261112
oct623515530
9241087640
10105814872
1154803309
122b52b560
1318bcb467
14100a63b2
15945284c
hex64e9b58

105814872 has 48 divisors (see below), whose sum is σ = 289439280. Its totient is φ = 34920000.

The previous prime is 105814861. The next prime is 105814879. The reversal of 105814872 is 278418501.

105814872 is a `hidden beast` number, since 1 + 0 + 581 + 4 + 8 + 72 = 666.

It is a super-2 number, since 2×1058148722 = 22393574272752768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105814879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4 + ... + 14547.

It is an arithmetic number, because the mean of its divisors is an integer number (6029985).

Almost surely, 2105814872 is an apocalyptic number.

105814872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105814872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144719640).

105814872 is an abundant number, since it is smaller than the sum of its proper divisors (183624408).

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

105814872 is a wasteful number, since it uses less digits than its factorization.

105814872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664 (or 14657 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 105814872 is about 10286.6356015949. The cubic root of 105814872 is about 472.9866724891.

The spelling of 105814872 in words is "one hundred five million, eight hundred fourteen thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 101 202 303 404 606 808 909 1212 1818 2424 3636 7272 14551 29102 43653 58204 87306 116408 130959 174612 261918 349224 523836 1047672 1469651 2939302 4408953 5878604 8817906 11757208 13226859 17635812 26453718 35271624 52907436 105814872