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102834731 = 472187973
BaseRepresentation
bin1100010000100…
…10001000101011
321011111112201202
412020102020223
5202311202411
614112034415
72356036466
oct610221053
9234445652
10102834731
115305828a
122a532a0b
13183c6b6c
14d92c2dd
15906483b
hex621222b

102834731 has 4 divisors (see below), whose sum is σ = 105022752. Its totient is φ = 100646712.

The previous prime is 102834727. The next prime is 102834737. The reversal of 102834731 is 137438201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102834731 - 22 = 102834727 is a prime.

It is a super-2 number, since 2×1028347312 = 21149963799684722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102834694 and 102834703.

It is not an unprimeable number, because it can be changed into a prime (102834737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093940 + ... + 1094033.

It is an arithmetic number, because the mean of its divisors is an integer number (26255688).

Almost surely, 2102834731 is an apocalyptic number.

102834731 is a deficient number, since it is larger than the sum of its proper divisors (2188021).

102834731 is an equidigital number, since it uses as much as digits as its factorization.

102834731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188020.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 102834731 is about 10140.7460770892. The cubic root of 102834731 is about 468.5039665074.

The spelling of 102834731 in words is "one hundred two million, eight hundred thirty-four thousand, seven hundred thirty-one".

Divisors: 1 47 2187973 102834731