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56783076 = 22371036563
BaseRepresentation
bin1101100010011…
…1000011100100
310221211212201220
43120213003210
5104014024301
65345020340
71256435220
oct330470344
9127755656
1056783076
112a063a69
12170246b0
13b9c196c
147781780
154eb9936
hex36270e4

56783076 has 48 divisors (see below), whose sum is σ = 152914944. Its totient is φ = 16063776.

The previous prime is 56783063. The next prime is 56783099. The reversal of 56783076 is 67038765.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5371 + ... + 11933.

It is an arithmetic number, because the mean of its divisors is an integer number (3185728).

Almost surely, 256783076 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 56783076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76457472).

56783076 is an abundant number, since it is smaller than the sum of its proper divisors (96131868).

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

56783076 is a wasteful number, since it uses less digits than its factorization.

56783076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6680 (or 6678 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 56783076 is about 7535.4545980982. The cubic root of 56783076 is about 384.3612864960.

The spelling of 56783076 in words is "fifty-six million, seven hundred eighty-three thousand, seventy-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 103 206 309 412 618 721 1236 1442 2163 2884 4326 6563 8652 13126 19689 26252 39378 45941 78756 91882 137823 183764 275646 551292 675989 1351978 2027967 2703956 4055934 4731923 8111868 9463846 14195769 18927692 28391538 56783076