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47640675371 = 307155181353
BaseRepresentation
bin101100010111100110…
…110000010000101011
311112222011100001200012
4230113212300100223
51240032003102441
633515201002135
73304403026202
oct542746602053
9145864301605
1047640675371
1119227a12593
12929692334b
134653026153
14243d25c239
15138c6a59eb
hexb179b042b

47640675371 has 4 divisors (see below), whose sum is σ = 47795857032. Its totient is φ = 47485493712.

The previous prime is 47640675359. The next prime is 47640675389. The reversal of 47640675371 is 17357604674.

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

It is a cyclic number.

It is not a de Polignac number, because 47640675371 - 226 = 47573566507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47640671371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77590370 + ... + 77590983.

It is an arithmetic number, because the mean of its divisors is an integer number (11948964258).

Almost surely, 247640675371 is an apocalyptic number.

47640675371 is a deficient number, since it is larger than the sum of its proper divisors (155181661).

47640675371 is a wasteful number, since it uses less digits than its factorization.

47640675371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155181660.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 47640675371 in words is "forty-seven billion, six hundred forty million, six hundred seventy-five thousand, three hundred seventy-one".

Divisors: 1 307 155181353 47640675371