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25306930 = 2511230063
BaseRepresentation
bin110000010001…
…0011100110010
31202121201120201
41200202130302
522434310210
62302225414
7425051065
oct140423462
952551521
1025306930
1113315520
12858526a
135320b1c
14350a8dc
15234d53a
hex1822732

25306930 has 16 divisors (see below), whose sum is σ = 49693824. Its totient is φ = 9202480.

The previous prime is 25306921. The next prime is 25306951. The reversal of 25306930 is 3960352.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114922 + ... + 115141.

It is an arithmetic number, because the mean of its divisors is an integer number (3105864).

Almost surely, 225306930 is an apocalyptic number.

25306930 is a deficient number, since it is larger than the sum of its proper divisors (24386894).

25306930 is a wasteful number, since it uses less digits than its factorization.

25306930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230081.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 25306930 is about 5030.5993678686. The cubic root of 25306930 is about 293.5935349026.

The spelling of 25306930 in words is "twenty-five million, three hundred six thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 230063 460126 1150315 2300630 2530693 5061386 12653465 25306930