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47288292 = 2233940691
BaseRepresentation
bin1011010001100…
…0111111100100
310021222111100020
42310120333210
544101211132
64405315140
71112641512
oct264307744
9107874306
1047288292
1124769437
1213a05ab0
139a4904c
1463cd4b2
15424152c
hex2d18fe4

47288292 has 12 divisors (see below), whose sum is σ = 110339376. Its totient is φ = 15762760.

The previous prime is 47288291. The next prime is 47288309. The reversal of 47288292 is 29288274.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (47288291) 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, 1970334 + ... + 1970357.

It is an arithmetic number, because the mean of its divisors is an integer number (9194948).

Almost surely, 247288292 is an apocalyptic number.

It is an amenable number.

47288292 is an abundant number, since it is smaller than the sum of its proper divisors (63051084).

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

47288292 is a wasteful number, since it uses less digits than its factorization.

47288292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940698 (or 3940696 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 47288292 is about 6876.6483114959. The cubic root of 47288292 is about 361.6189737512.

The spelling of 47288292 in words is "forty-seven million, two hundred eighty-eight thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 3940691 7881382 11822073 15762764 23644146 47288292