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56903973 = 372709713
BaseRepresentation
bin1101100100010…
…0100100100101
310222002000120120
43121010210211
5104031411343
65351352153
71260450540
oct331044445
9128060516
1056903973
112a136885
1217082659
13ba349b9
1477b3857
154ee0683
hex3644925

56903973 has 8 divisors (see below), whose sum is σ = 86710848. Its totient is φ = 32516544.

The previous prime is 56903963. The next prime is 56903999. The reversal of 56903973 is 37930965.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56903973 - 213 = 56895781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56903933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1354836 + ... + 1354877.

It is an arithmetic number, because the mean of its divisors is an integer number (10838856).

Almost surely, 256903973 is an apocalyptic number.

It is an amenable number.

56903973 is a deficient number, since it is larger than the sum of its proper divisors (29806875).

56903973 is a wasteful number, since it uses less digits than its factorization.

56903973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709723.

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 56903973 is about 7543.4722111240. The cubic root of 56903973 is about 384.6338746813.

The spelling of 56903973 in words is "fifty-six million, nine hundred three thousand, nine hundred seventy-three".

Divisors: 1 3 7 21 2709713 8129139 18967991 56903973