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30108956 = 2225129989
BaseRepresentation
bin111001011011…
…0110100011100
32002122200201112
41302312310130
530201441311
62553201152
7513631133
oct162666434
962580645
1030108956
1115aa5339
12a1001b8
136312767
143dda91a
15299b28b
hex1cb6d1c

30108956 has 12 divisors (see below), whose sum is σ = 52902360. Its totient is φ = 14994000.

The previous prime is 30108937. The next prime is 30109003. The reversal of 30108956 is 65980103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13991 + ... + 15998.

It is an arithmetic number, because the mean of its divisors is an integer number (4408530).

Almost surely, 230108956 is an apocalyptic number.

It is an amenable number.

30108956 is a deficient number, since it is larger than the sum of its proper divisors (22793404).

30108956 is a wasteful number, since it uses less digits than its factorization.

30108956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30244 (or 30242 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 30108956 is about 5487.1628370224. The cubic root of 30108956 is about 311.0989645862.

The spelling of 30108956 in words is "thirty million, one hundred eight thousand, nine hundred fifty-six".

Divisors: 1 2 4 251 502 1004 29989 59978 119956 7527239 15054478 30108956