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20376239472 = 243415722407
BaseRepresentation
bin10010111110100001…
…001011110101110000
31221121001111012210000
4102332201023311300
5313212304130342
613205525310000
71320641114661
oct227641136560
957531435700
1020376239472
118706946336
123b47b65300
131bc961a244
14db4263368
157e3cd944c
hex4be84bd70

20376239472 has 50 divisors (see below), whose sum is σ = 58974752408. Its totient is φ = 6792079392.

The previous prime is 20376239453. The next prime is 20376239531. The reversal of 20376239472 is 27493267302.

20376239472 is a `hidden beast` number, since 2 + 0 + 376 + 239 + 47 + 2 = 666.

It is a super-2 number, since 2×203762394722 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7859908 + ... + 7862499.

Almost surely, 220376239472 is an apocalyptic number.

It is an amenable number.

20376239472 is an abundant number, since it is smaller than the sum of its proper divisors (38598512936).

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

20376239472 is a wasteful number, since it uses less digits than its factorization.

20376239472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15722427 (or 15722412 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 20376239472 in words is "twenty billion, three hundred seventy-six million, two hundred thirty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 108 144 162 216 324 432 648 1296 15722407 31444814 47167221 62889628 94334442 125779256 141501663 188668884 251558512 283003326 377337768 424504989 566006652 754675536 849009978 1132013304 1273514967 1698019956 2264026608 2547029934 3396039912 5094059868 6792079824 10188119736 20376239472