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51492932200 = 2352257464661
BaseRepresentation
bin101111111101001101…
…111100101001101000
311220220122000222121001
4233331031330221220
51320424142312300
635353332124344
73502020462523
oct577515745150
9156818028531
1051492932200
111a924466116
129b90a666b4
134b18158c68
1426c6b13bba
15151599516a
hexbfd37ca68

51492932200 has 24 divisors (see below), whose sum is σ = 119721067830. Its totient is φ = 20597172800.

The previous prime is 51492932177. The next prime is 51492932273. The reversal of 51492932200 is 223929415.

It can be written as a sum of positive squares in 3 ways, for example, as 47585932164 + 3907000036 = 218142^2 + 62506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51492932200.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128732131 + ... + 128732530.

Almost surely, 251492932200 is an apocalyptic number.

51492932200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51492932200 is an abundant number, since it is smaller than the sum of its proper divisors (68228135630).

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

51492932200 is a wasteful number, since it uses less digits than its factorization.

51492932200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257464677 (or 257464668 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 51492932200 in words is "fifty-one billion, four hundred ninety-two million, nine hundred thirty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 257464661 514929322 1029858644 1287323305 2059717288 2574646610 5149293220 6436616525 10298586440 12873233050 25746466100 51492932200