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51283404288 = 2935412193
BaseRepresentation
bin101111110000101110…
…101010011000000000
311220101000202212100000
4233300232222120000
51320012022414123
635320445200000
73463564513134
oct576056523000
9156330685300
1051283404288
111a827165756
129b32860000
134ab3916c4c
1426a6d713c4
1515023a7b43
hexbf0baa600

51283404288 has 120 divisors (see below), whose sum is σ = 153489504168. Its totient is φ = 17094426624.

The previous prime is 51283404283. The next prime is 51283404301. The reversal of 51283404288 is 88240438215.

51283404288 is a `hidden beast` number, since 5 + 1 + 28 + 340 + 4 + 288 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51283404283) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81681 + ... + 330512.

Almost surely, 251283404288 is an apocalyptic number.

It is an amenable number.

51283404288 is an abundant number, since it is smaller than the sum of its proper divisors (102206099880).

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

51283404288 is an frugal number, since it uses more digits than its factorization.

51283404288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412226 (or 412198 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The spelling of 51283404288 in words is "fifty-one billion, two hundred eighty-three million, four hundred four thousand, two hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 243 256 288 324 384 432 486 512 576 648 768 864 972 1152 1296 1536 1728 1944 2304 2592 3456 3888 4608 5184 6912 7776 10368 13824 15552 20736 31104 41472 62208 124416 412193 824386 1236579 1648772 2473158 3297544 3709737 4946316 6595088 7419474 9892632 11129211 13190176 14838948 19785264 22258422 26380352 29677896 33387633 39570528 44516844 52760704 59355792 66775266 79141056 89033688 100162899 105521408 118711584 133550532 158282112 178067376 200325798 211042816 237423168 267101064 316564224 356134752 400651596 474846336 534202128 633128448 712269504 801303192 949692672 1068404256 1424539008 1602606384 1899385344 2136808512 2849078016 3205212768 4273617024 5698156032 6410425536 8547234048 12820851072 17094468096 25641702144 51283404288