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25230582815 = 524133016343
BaseRepresentation
bin10111011111110111…
…000010010000011111
32102010100210101222012
4113133313002100133
5403133012122230
615331334541435
71552144262324
oct273767022037
972110711865
1025230582815
11a778008339
124a8180787b
1324c123ab59
141314c4ab4b
159ca06d395
hex5dfdc241f

25230582815 has 16 divisors (see below), whose sum is σ = 30416333376. Its totient is φ = 20091456000.

The previous prime is 25230582763. The next prime is 25230582841. The reversal of 25230582815 is 51828503252.

It is not a de Polignac number, because 25230582815 - 212 = 25230578719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3974534 + ... + 3980876.

It is an arithmetic number, because the mean of its divisors is an integer number (1901020836).

Almost surely, 225230582815 is an apocalyptic number.

25230582815 is a deficient number, since it is larger than the sum of its proper divisors (5185750561).

25230582815 is a wasteful number, since it uses less digits than its factorization.

25230582815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 25230582815 in words is "twenty-five billion, two hundred thirty million, five hundred eighty-two thousand, eight hundred fifteen".

Divisors: 1 5 241 1205 3301 6343 16505 31715 795541 1528663 3977705 7643315 20938243 104691215 5046116563 25230582815