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56740800 = 2635211821
BaseRepresentation
bin1101100001110…
…0101111000000
310221202201202010
43120130233000
5104011201200
65344052520
71256201034
oct330345700
9127681663
1056740800
112a035226
1217004140
13b9a864c
1477701c4
154eac150
hex361cbc0

56740800 has 84 divisors (see below), whose sum is σ = 186172856. Its totient is φ = 15129600.

The previous prime is 56740777. The next prime is 56740807. The reversal of 56740800 is 804765.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56740807) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1111 + ... + 10710.

Almost surely, 256740800 is an apocalyptic number.

56740800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56740800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93086428).

56740800 is an abundant number, since it is smaller than the sum of its proper divisors (129432056).

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

56740800 is a wasteful number, since it uses less digits than its factorization.

56740800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11846 (or 11831 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 56740800 is about 7532.6489364632. The cubic root of 56740800 is about 384.2658748982.

The spelling of 56740800 in words is "fifty-six million, seven hundred forty thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4800 11821 23642 35463 47284 59105 70926 94568 118210 141852 177315 189136 236420 283704 295525 354630 378272 472840 567408 591050 709260 756544 886575 945680 1134816 1182100 1418520 1773150 1891360 2269632 2364200 2837040 3546300 3782720 4728400 5674080 7092600 9456800 11348160 14185200 18913600 28370400 56740800