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47920494 = 237986749
BaseRepresentation
bin1011011011001…
…1010101101110
310100011121120010
42312303111232
544231423434
64431034050
71121213616
oct266632556
9110147503
1047920494
1125060416
121406b926
139c0aa2b
146515a46
1543189e9
hex2db356e

47920494 has 8 divisors (see below), whose sum is σ = 95841000. Its totient is φ = 15973496.

The previous prime is 47920493. The next prime is 47920507. The reversal of 47920494 is 49402974.

It is a happy number.

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

47920494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47920493) 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, 3993369 + ... + 3993380.

It is an arithmetic number, because the mean of its divisors is an integer number (11980125).

Almost surely, 247920494 is an apocalyptic number.

47920494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47920494 is a wasteful number, since it uses less digits than its factorization.

47920494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7986754.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 47920494 is about 6922.4630009845. The cubic root of 47920494 is about 363.2233521360.

The spelling of 47920494 in words is "forty-seven million, nine hundred twenty thousand, four hundred ninety-four".

Divisors: 1 2 3 6 7986749 15973498 23960247 47920494