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47047944 = 2331960331
BaseRepresentation
bin1011001101111…
…0010100001000
310021112021122110
42303132110020
544021013234
64400222320
71110621006
oct263362410
9107467573
1047047944
11246148a9
121390a9a0
139993828
146369a76
1541e51e9
hex2cde508

47047944 has 16 divisors (see below), whose sum is σ = 117619920. Its totient is φ = 15682640.

The previous prime is 47047943. The next prime is 47047967. The reversal of 47047944 is 44974074.

It is not an unprimeable number, because it can be changed into a prime (47047943) 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, 980142 + ... + 980189.

It is an arithmetic number, because the mean of its divisors is an integer number (7351245).

Almost surely, 247047944 is an apocalyptic number.

It is an amenable number.

47047944 is an abundant number, since it is smaller than the sum of its proper divisors (70571976).

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

47047944 is a wasteful number, since it uses less digits than its factorization.

47047944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960340 (or 1960336 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 47047944 is about 6859.1503847051. The cubic root of 47047944 is about 361.0052766370.

The spelling of 47047944 in words is "forty-seven million, forty-seven thousand, nine hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 1960331 3920662 5880993 7841324 11761986 15682648 23523972 47047944