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57928845408 = 253786203639
BaseRepresentation
bin110101111100110101…
…000000100001100000
312112112011100020202220
4311330311000201200
51422114241023113
642340120111040
74120350030060
oct657465004140
9175464306686
1057928845408
1122627360a55
12b288305480
13560262b925
142b377953a0
1517909d7523
hexd7cd40860

57928845408 has 48 divisors (see below), whose sum is σ = 173786538240. Its totient is φ = 16551098496.

The previous prime is 57928845391. The next prime is 57928845433. The reversal of 57928845408 is 80454882975.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×579288454082 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43101148 + ... + 43102491.

It is an arithmetic number, because the mean of its divisors is an integer number (3620552880).

Almost surely, 257928845408 is an apocalyptic number.

It is an amenable number.

57928845408 is an abundant number, since it is smaller than the sum of its proper divisors (115857692832).

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

57928845408 is a wasteful number, since it uses less digits than its factorization.

57928845408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86203659 (or 86203651 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 60.

The spelling of 57928845408 in words is "fifty-seven billion, nine hundred twenty-eight million, eight hundred forty-five thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 86203639 172407278 258610917 344814556 517221834 603425473 689629112 1034443668 1206850946 1379258224 1810276419 2068887336 2413701892 2758516448 3620552838 4137774672 4827403784 7241105676 8275549344 9654807568 14482211352 19309615136 28964422704 57928845408