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56672105385 = 357962956053
BaseRepresentation
bin110100110001111010…
…111011001110101001
312102021120120020120010
4310301322323032221
51412031024333020
642011303522133
74044246643020
oct646172731651
9172246506503
1056672105385
1122041a20635
12ab97459349
13546215c28c
142a588d58b7
15171a4dede0
hexd31ebb3a9

56672105385 has 32 divisors (see below), whose sum is σ = 103641603840. Its totient is φ = 25904095488.

The previous prime is 56672105383. The next prime is 56672105387. The reversal of 56672105385 is 58350127665.

It is an interprime number because it is at equal distance from previous prime (56672105383) and next prime (56672105387).

It is not a de Polignac number, because 56672105385 - 21 = 56672105383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56672105383) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 983019 + ... + 1039071.

It is an arithmetic number, because the mean of its divisors is an integer number (3238800120).

Almost surely, 256672105385 is an apocalyptic number.

It is an amenable number.

56672105385 is a deficient number, since it is larger than the sum of its proper divisors (46969498455).

56672105385 is a wasteful number, since it uses less digits than its factorization.

56672105385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65697.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 56672105385 in words is "fifty-six billion, six hundred seventy-two million, one hundred five thousand, three hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 105 9629 28887 48145 56053 67403 144435 168159 202209 280265 337015 392371 840795 1011045 1177113 1961855 5885565 539734337 1619203011 2698671685 3778140359 8096015055 11334421077 18890701795 56672105385