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56886320 = 245799001
BaseRepresentation
bin1101100100000…
…0010000110000
310222001010100202
43121000100300
5104030330240
65351134332
71260345221
oct331002060
9128033322
1056886320
112a124597
12170743a8
13ba2995a
1477ab248
154eda315
hex3640430

56886320 has 40 divisors (see below), whose sum is σ = 133949760. Its totient is φ = 22464000.

The previous prime is 56886307. The next prime is 56886341. The reversal of 56886320 is 2368865.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1820 + ... + 10820.

It is an arithmetic number, because the mean of its divisors is an integer number (3348744).

Almost surely, 256886320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56886320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66974880).

56886320 is an abundant number, since it is smaller than the sum of its proper divisors (77063440).

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

56886320 is a wasteful number, since it uses less digits than its factorization.

56886320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9093 (or 9087 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 56886320 is about 7542.3020358509. The cubic root of 56886320 is about 384.5940962986.

The spelling of 56886320 in words is "fifty-six million, eight hundred eighty-six thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 79 80 158 316 395 632 790 1264 1580 3160 6320 9001 18002 36004 45005 72008 90010 144016 180020 360040 711079 720080 1422158 2844316 3555395 5688632 7110790 11377264 14221580 28443160 56886320