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20425465696 = 254871310669
BaseRepresentation
bin10011000001011100…
…111101111101100000
31221201111010011110111
4103001130331331200
5313312404400241
613214444341104
71322106410446
oct230134757540
957644104414
1020425465696
118731708769
123b60544794
131c0689439c
14dba9d8b96
157e82aec81
hex4c173df60

20425465696 has 24 divisors (see below), whose sum is σ = 40295238480. Its totient is φ = 10191754368.

The previous prime is 20425465679. The next prime is 20425465717. The reversal of 20425465696 is 69656452402.

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, 639751 + ... + 670918.

It is an arithmetic number, because the mean of its divisors is an integer number (1678968270).

Almost surely, 220425465696 is an apocalyptic number.

It is an amenable number.

20425465696 is a deficient number, since it is larger than the sum of its proper divisors (19869772784).

20425465696 is a wasteful number, since it uses less digits than its factorization.

20425465696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311166 (or 1311158 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 20425465696 in words is "twenty billion, four hundred twenty-five million, four hundred sixty-five thousand, six hundred ninety-six".

Divisors: 1 2 4 8 16 32 487 974 1948 3896 7792 15584 1310669 2621338 5242676 10485352 20970704 41941408 638295803 1276591606 2553183212 5106366424 10212732848 20425465696