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25830308 = 227922511
BaseRepresentation
bin110001010001…
…0001110100100
31210121022112002
41202202032210
523103032213
62321344432
7432361010
oct142421644
953538462
1025830308
1113642769
128798118
13547510a
143605540
152403658
hex18a23a4

25830308 has 12 divisors (see below), whose sum is σ = 51660672. Its totient is φ = 11070120.

The previous prime is 25830289. The next prime is 25830317. The reversal of 25830308 is 80303852.

25830308 is an admirable number.

It is a super-2 number, since 2×258303082 = 1334409622749728, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 461228 + ... + 461283.

It is an arithmetic number, because the mean of its divisors is an integer number (4305056).

Almost surely, 225830308 is an apocalyptic number.

25830308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25830308 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25830308 is a wasteful number, since it uses less digits than its factorization.

25830308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922522 (or 922520 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 25830308 is about 5082.3526048475. The cubic root of 25830308 is about 295.6036971808.

The spelling of 25830308 in words is "twenty-five million, eight hundred thirty thousand, three hundred eight".

Divisors: 1 2 4 7 14 28 922511 1845022 3690044 6457577 12915154 25830308