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51330502224 = 243489445021
BaseRepresentation
bin101111110011100010…
…010100111001010000
311220111022101200120000
4233303202110321100
51320111102032344
635325250450000
73465006032661
oct576342247120
9156438350500
1051330502224
111a850804071
129b46593900
134ac05c7451
1426ad311368
1515065aca69
hexbf3894e50

51330502224 has 100 divisors (see below), whose sum is σ = 150234976980. Its totient is φ = 16917880320.

The previous prime is 51330502199. The next prime is 51330502319. The reversal of 51330502224 is 42220503315.

It is a happy number.

51330502224 is a `hidden beast` number, since 5 + 133 + 0 + 502 + 2 + 24 = 666.

51330502224 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30334492224 + 20996010000 = 174168^2 + 144900^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107167 + ... + 337854.

Almost surely, 251330502224 is an apocalyptic number.

51330502224 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

51330502224 is an abundant number, since it is smaller than the sum of its proper divisors (98904474756).

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

51330502224 is a wasteful number, since it uses less digits than its factorization.

51330502224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445130 (or 445115 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 51330502224 in words is "fifty-one billion, three hundred thirty million, five hundred two thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 89 108 144 162 178 216 267 324 356 432 534 648 712 801 1068 1296 1424 1602 2136 2403 3204 4272 4806 6408 7209 9612 12816 14418 19224 28836 38448 57672 115344 445021 890042 1335063 1780084 2670126 3560168 4005189 5340252 7120336 8010378 10680504 12015567 16020756 21361008 24031134 32041512 36046701 39606869 48062268 64083024 72093402 79213738 96124536 118820607 144186804 158427476 192249072 237641214 288373608 316854952 356461821 475282428 576747216 633709904 712923642 950564856 1069385463 1425847284 1901129712 2138770926 2851694568 3208156389 4277541852 5703389136 6416312778 8555083704 12832625556 17110167408 25665251112 51330502224