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56303838 = 2324766553
BaseRepresentation
bin1101011011001…
…0000011011110
310220221112100100
43112302003132
5103403210323
65330441530
71252401063
oct326620336
9126845310
1056303838
11298669a8
1216a332a6
13b8847a6
147698c6a
154e22943
hex35b20de

56303838 has 24 divisors (see below), whose sum is σ = 124589088. Its totient is φ = 18368352.

The previous prime is 56303837. The next prime is 56303857. The reversal of 56303838 is 83830365.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56303833) 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, 32431 + ... + 34122.

It is an arithmetic number, because the mean of its divisors is an integer number (5191212).

Almost surely, 256303838 is an apocalyptic number.

56303838 is an abundant number, since it is smaller than the sum of its proper divisors (68285250).

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

56303838 is a wasteful number, since it uses less digits than its factorization.

56303838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66608 (or 66605 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 56303838 is about 7503.5883415870. The cubic root of 56303838 is about 383.2769188982.

The spelling of 56303838 in words is "fifty-six million, three hundred three thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 9 18 47 94 141 282 423 846 66553 133106 199659 399318 598977 1197954 3127991 6255982 9383973 18767946 28151919 56303838