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47144906 = 2158314891
BaseRepresentation
bin1011001111010…
…1111111001010
310021201012122122
42303311333022
544032114111
64402251242
71111503464
oct263657712
9107635578
1047144906
1124680736
1213956b22
1399c89c3
146393134
154213cdb
hex2cf5fca

47144906 has 8 divisors (see below), whose sum is σ = 70766784. Its totient is φ = 23555980.

The previous prime is 47144879. The next prime is 47144921. The reversal of 47144906 is 60944174.

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

It is a Curzon number.

It is an unprimeable number.

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, 4280 + ... + 10611.

It is an arithmetic number, because the mean of its divisors is an integer number (8845848).

Almost surely, 247144906 is an apocalyptic number.

47144906 is a deficient number, since it is larger than the sum of its proper divisors (23621878).

47144906 is a wasteful number, since it uses less digits than its factorization.

47144906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16476.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 47144906 is about 6866.2148233215. The cubic root of 47144906 is about 361.2531073355.

The spelling of 47144906 in words is "forty-seven million, one hundred forty-four thousand, nine hundred six".

Divisors: 1 2 1583 3166 14891 29782 23572453 47144906