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56205992 = 238978941
BaseRepresentation
bin1101011001101…
…0001010101000
310220202120010102
43112122022220
5103342042432
65324404532
71251512603
oct326321250
9126676112
1056205992
11297aa437
12169a6748
13b84c0ab
14767133a
154e03962
hex359a2a8

56205992 has 16 divisors (see below), whose sum is σ = 106571700. Its totient is φ = 27786880.

The previous prime is 56205991. The next prime is 56206013. The reversal of 56205992 is 29950265.

It can be written as a sum of positive squares in 2 ways, for example, as 49477156 + 6728836 = 7034^2 + 2594^2 .

It is a super-3 number, since 3×562059923 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (56205991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38759 + ... + 40182.

Almost surely, 256205992 is an apocalyptic number.

It is an amenable number.

56205992 is a deficient number, since it is larger than the sum of its proper divisors (50365708).

56205992 is a wasteful number, since it uses less digits than its factorization.

56205992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79036 (or 79032 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 56205992 is about 7497.0655592705. The cubic root of 56205992 is about 383.0547679180.

The spelling of 56205992 in words is "fifty-six million, two hundred five thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 89 178 356 712 78941 157882 315764 631528 7025749 14051498 28102996 56205992