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56969892 = 223672791
BaseRepresentation
bin1101100101010…
…0101010100100
310222012101000000
43121110222210
5104041014032
65353021300
71261143660
oct331245244
9128171000
1056969892
112a181361
12170b4830
13ba589c5
1477cd8a0
155004e7c
hex3654aa4

56969892 has 84 divisors (see below), whose sum is σ = 170892736. Its totient is φ = 16271280.

The previous prime is 56969849. The next prime is 56969893. The reversal of 56969892 is 29896965.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56969893) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 19017 + ... + 21807.

Almost surely, 256969892 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 56969892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85446368).

56969892 is an abundant number, since it is smaller than the sum of its proper divisors (113922844).

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

56969892 is a wasteful number, since it uses less digits than its factorization.

56969892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2803 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 56969892 is about 7547.8402208844. The cubic root of 56969892 is about 384.7823405666.

The spelling of 56969892 in words is "fifty-six million, nine hundred sixty-nine thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 243 252 324 378 486 567 729 756 972 1134 1458 1701 2268 2791 2916 3402 5103 5582 6804 8373 10206 11164 16746 19537 20412 25119 33492 39074 50238 58611 75357 78148 100476 117222 150714 175833 226071 234444 301428 351666 452142 527499 678213 703332 904284 1054998 1356426 1582497 2034639 2109996 2712852 3164994 4069278 4747491 6329988 8138556 9494982 14242473 18989964 28484946 56969892