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25426527680 = 26579457899
BaseRepresentation
bin10111101011100010…
…100000010111000000
32102122000111102210102
4113223202200113000
5404033142341210
615403014421532
71560043630211
oct275342402700
972560442712
1025426527680
11a868680644
124b173618a8
132522a05468
141332c95408
159dc375ea5
hex5eb8a05c0

25426527680 has 28 divisors (see below), whose sum is σ = 60546919800. Its totient is φ = 10170610944.

The previous prime is 25426527677. The next prime is 25426527689. The reversal of 25426527680 is 8672562452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25426527689) 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, 39728630 + ... + 39729269.

Almost surely, 225426527680 is an apocalyptic number.

25426527680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25426527680 is an abundant number, since it is smaller than the sum of its proper divisors (35120392120).

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

25426527680 is an equidigital number, since it uses as much as digits as its factorization.

25426527680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79457916 (or 79457906 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 25426527680 in words is "twenty-five billion, four hundred twenty-six million, five hundred twenty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 79457899 158915798 317831596 397289495 635663192 794578990 1271326384 1589157980 2542652768 3178315960 5085305536 6356631920 12713263840 25426527680