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47930916 = 223111492437
BaseRepresentation
bin1011011011010…
…1111000100100
310100012010212010
42312311320210
544232242131
64431154220
71121256165
oct266657044
9110163763
1047930916
1125068230
1214075970
139c126b7
14651976c
15431bb46
hex2db5e24

47930916 has 48 divisors (see below), whose sum is σ = 122875200. Its totient is φ = 14421120.

The previous prime is 47930899. The next prime is 47930917. The reversal of 47930916 is 61903974.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (47930917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18450 + ... + 20886.

It is an arithmetic number, because the mean of its divisors is an integer number (2559900).

Almost surely, 247930916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47930916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61437600).

47930916 is an abundant number, since it is smaller than the sum of its proper divisors (74944284).

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

47930916 is a wasteful number, since it uses less digits than its factorization.

47930916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604 (or 2602 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 47930916 is about 6923.2157268137. The cubic root of 47930916 is about 363.2496821329.

The spelling of 47930916 in words is "forty-seven million, nine hundred thirty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 149 298 447 596 894 1639 1788 2437 3278 4874 4917 6556 7311 9748 9834 14622 19668 26807 29244 53614 80421 107228 160842 321684 363113 726226 1089339 1452452 2178678 3994243 4357356 7988486 11982729 15976972 23965458 47930916