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47396957 = 353134269
BaseRepresentation
bin1011010011001…
…1100001011101
310022012000101212
42310303201131
544113200312
64411514205
71113603356
oct264634135
9108160355
1047396957
1124833043
1213a58965
139a8664a
14641ad2d
154263822
hex2d3385d

47396957 has 4 divisors (see below), whose sum is σ = 47531580. Its totient is φ = 47262336.

The previous prime is 47396953. The next prime is 47396959. The reversal of 47396957 is 75969374.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33304441 + 14092516 = 5771^2 + 3754^2 .

It is a cyclic number.

It is not a de Polignac number, because 47396957 - 22 = 47396953 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47396953) 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, 66782 + ... + 67487.

It is an arithmetic number, because the mean of its divisors is an integer number (11882895).

Almost surely, 247396957 is an apocalyptic number.

It is an amenable number.

47396957 is a deficient number, since it is larger than the sum of its proper divisors (134623).

47396957 is a wasteful number, since it uses less digits than its factorization.

47396957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134622.

The product of its digits is 1428840, while the sum is 50.

The square root of 47396957 is about 6884.5447925044. The cubic root of 47396957 is about 361.8957530781.

The spelling of 47396957 in words is "forty-seven million, three hundred ninety-six thousand, nine hundred fifty-seven".

Divisors: 1 353 134269 47396957