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51416301800 = 2352257081509
BaseRepresentation
bin101111111000101001…
…101000000011101000
311220201021211202110002
4233320221220003220
51320300033124200
635341553442132
73500100232343
oct577051500350
9156637752402
1051416301800
111a895186606
129b6b270348
134b05308526
1426ba88745a
15150dda9bd5
hexbf8a680e8

51416301800 has 24 divisors (see below), whose sum is σ = 119542902150. Its totient is φ = 20566520640.

The previous prime is 51416301791. The next prime is 51416301841. The reversal of 51416301800 is 810361415.

It can be written as a sum of positive squares in 3 ways, for example, as 24565546756 + 26850755044 = 156734^2 + 163862^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128540555 + ... + 128540954.

Almost surely, 251416301800 is an apocalyptic number.

51416301800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51416301800 is an abundant number, since it is smaller than the sum of its proper divisors (68126600350).

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

51416301800 is a wasteful number, since it uses less digits than its factorization.

51416301800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257081525 (or 257081516 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 51416301800 in words is "fifty-one billion, four hundred sixteen million, three hundred one thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 257081509 514163018 1028326036 1285407545 2056652072 2570815090 5141630180 6427037725 10283260360 12854075450 25708150900 51416301800