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56206371 = 3131441189
BaseRepresentation
bin1101011001101…
…0010000100011
310220202120122110
43112122100203
5103342100441
65324410403
71251513654
oct326322043
9126676573
1056206371
11297aa751
12169a6a03
13b84c310
14767152b
154e03b16
hex359a423

56206371 has 8 divisors (see below), whose sum is σ = 80706640. Its totient is φ = 34588512.

The previous prime is 56206363. The next prime is 56206373. The reversal of 56206371 is 17360265.

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

It is not a de Polignac number, because 56206371 - 23 = 56206363 is a prime.

It is a super-2 number, since 2×562063712 = 6318312281979282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56206373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720556 + ... + 720633.

It is an arithmetic number, because the mean of its divisors is an integer number (10088330).

Almost surely, 256206371 is an apocalyptic number.

56206371 is a deficient number, since it is larger than the sum of its proper divisors (24500269).

56206371 is a wasteful number, since it uses less digits than its factorization.

56206371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441205.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 56206371 is about 7497.0908357842. The cubic root of 56206371 is about 383.0556289023.

The spelling of 56206371 in words is "fifty-six million, two hundred six thousand, three hundred seventy-one".

Divisors: 1 3 13 39 1441189 4323567 18735457 56206371