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56550029 = 2941199239
BaseRepresentation
bin1101011110111…
…0001010001101
310221102001001112
43113232022031
5103434100104
65340021405
71254444614
oct327561215
9127361045
1056550029
1129a14968
1216b31865
13b93c873
14772087b
154e7086e
hex35ee28d

56550029 has 16 divisors (see below), whose sum is σ = 60480000. Its totient is φ = 52778880.

The previous prime is 56549981. The next prime is 56550037. The reversal of 56550029 is 92005565.

It is a cyclic number.

It is not a de Polignac number, because 56550029 - 212 = 56545933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56549977 and 56550004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56550829) 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, 236492 + ... + 236730.

It is an arithmetic number, because the mean of its divisors is an integer number (3780000).

Almost surely, 256550029 is an apocalyptic number.

It is an amenable number.

56550029 is a deficient number, since it is larger than the sum of its proper divisors (3929971).

56550029 is a wasteful number, since it uses less digits than its factorization.

56550029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 56550029 is about 7519.9753324064. The cubic root of 56550029 is about 383.8347383666.

The spelling of 56550029 in words is "fifty-six million, five hundred fifty thousand, twenty-nine".

Divisors: 1 29 41 199 239 1189 5771 6931 8159 9799 47561 236611 284171 1379269 1950001 56550029