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56323738780 = 22561101457099
BaseRepresentation
bin110100011101001010…
…000000110010011100
312101101022001101102021
4310131022000302130
51410322334120110
641512541105524
74032516610651
oct643512006234
9171338041367
1056323738780
1121983311651
12aaba8582a4
135407c286aa
142a24531c28
1516e9b2a2da
hexd1d280c9c

56323738780 has 48 divisors (see below), whose sum is σ = 121409416800. Its totient is φ = 21940704000.

The previous prime is 56323738777. The next prime is 56323738789. The reversal of 56323738780 is 8783732365.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56323738789) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105330 + ... + 351769.

It is an arithmetic number, because the mean of its divisors is an integer number (2529362850).

Almost surely, 256323738780 is an apocalyptic number.

It is an amenable number.

56323738780 is an abundant number, since it is smaller than the sum of its proper divisors (65085678020).

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

56323738780 is a wasteful number, since it uses less digits than its factorization.

56323738780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457270 (or 457268 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 56323738780 in words is "fifty-six billion, three hundred twenty-three million, seven hundred thirty-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 61 101 122 202 244 305 404 505 610 1010 1220 2020 6161 12322 24644 30805 61610 123220 457099 914198 1828396 2285495 4570990 9141980 27883039 46166999 55766078 92333998 111532156 139415195 184667996 230834995 278830390 461669990 557660780 923339980 2816186939 5632373878 11264747756 14080934695 28161869390 56323738780