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51126883960 = 2351278172099
BaseRepresentation
bin101111100111011001…
…100101011001111000
311212222010020210210211
4233213121211121320
51314201440241320
635253134320504
73456654225505
oct574731453170
9155863223724
1051126883960
111a75687a709
129aaa359134
134a8a374279
14269026a4ac
1514e378b55a
hexbe7665678

51126883960 has 16 divisors (see below), whose sum is σ = 115035489000. Its totient is φ = 20450753568.

The previous prime is 51126883957. The next prime is 51126883963. The reversal of 51126883960 is 6938862115.

It is an interprime number because it is at equal distance from previous prime (51126883957) and next prime (51126883963).

It is a super-2 number, since 2×511268839602 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51126883963) 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, 639086010 + ... + 639086089.

Almost surely, 251126883960 is an apocalyptic number.

It is an amenable number.

51126883960 is an abundant number, since it is smaller than the sum of its proper divisors (63908605040).

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

51126883960 is a wasteful number, since it uses less digits than its factorization.

51126883960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278172110 (or 1278172106 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 51126883960 in words is "fifty-one billion, one hundred twenty-six million, eight hundred eighty-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 1278172099 2556344198 5112688396 6390860495 10225376792 12781720990 25563441980 51126883960