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56378620 = 22514918919
BaseRepresentation
bin1101011100010…
…0010011111100
310221002022221001
43113010103330
5103413103440
65332220044
71253132104
oct327042374
9127068831
1056378620
1129908101
1216a6a624
13b8ac83c
1476b8204
154e39b9a
hex35c44fc

56378620 has 24 divisors (see below), whose sum is σ = 119196000. Its totient is φ = 22398912.

The previous prime is 56378617. The next prime is 56378627. The reversal of 56378620 is 2687365.

It is a self number, because there is not a number n which added to its sum of digits gives 56378620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56378627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6480 + ... + 12439.

It is an arithmetic number, because the mean of its divisors is an integer number (4966500).

Almost surely, 256378620 is an apocalyptic number.

It is an amenable number.

56378620 is an abundant number, since it is smaller than the sum of its proper divisors (62817380).

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

56378620 is a wasteful number, since it uses less digits than its factorization.

56378620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19077 (or 19075 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 56378620 is about 7508.5697706021. The cubic root of 56378620 is about 383.4465315766.

The spelling of 56378620 in words is "fifty-six million, three hundred seventy-eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 18919 37838 75676 94595 189190 378380 2818931 5637862 11275724 14094655 28189310 56378620