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47142474 = 237857079
BaseRepresentation
bin1011001111010…
…1011001001010
310021201002022120
42303311121022
544032024344
64402232110
71111463421
oct263653112
9107632276
1047142474
1124679925
1213955636
1399c7872
1463922b8
154213219
hex2cf564a

47142474 has 8 divisors (see below), whose sum is σ = 94284960. Its totient is φ = 15714156.

The previous prime is 47142449. The next prime is 47142517. The reversal of 47142474 is 47424174.

It is a happy number.

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

47142474 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3928534 + ... + 3928545.

It is an arithmetic number, because the mean of its divisors is an integer number (11785620).

Almost surely, 247142474 is an apocalyptic number.

47142474 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.

47142474 is a wasteful number, since it uses less digits than its factorization.

47142474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857084.

The product of its digits is 25088, while the sum is 33.

The square root of 47142474 is about 6866.0377220053. The cubic root of 47142474 is about 361.2468954048.

The spelling of 47142474 in words is "forty-seven million, one hundred forty-two thousand, four hundred seventy-four".

Divisors: 1 2 3 6 7857079 15714158 23571237 47142474