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47794864 = 2413474889
BaseRepresentation
bin1011011001010…
…0101010110000
310022221020020011
42312110222300
544213413424
64424224304
71120151425
oct266245260
9108836204
1047794864
1124a84a97
121400b094
139b957b0
1464c1d4c
1542e1694
hex2d94ab0

47794864 has 40 divisors (see below), whose sum is σ = 101868480. Its totient is φ = 21585408.

The previous prime is 47794843. The next prime is 47794891. The reversal of 47794864 is 46849774.

It is a super-3 number, since 3×477948643 (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7332 + ... + 12220.

It is an arithmetic number, because the mean of its divisors is an integer number (2546712).

Almost surely, 247794864 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 47794864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50934240).

47794864 is an abundant number, since it is smaller than the sum of its proper divisors (54073616).

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

47794864 is a wasteful number, since it uses less digits than its factorization.

47794864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4957 (or 4951 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The square root of 47794864 is about 6913.3829634991. The cubic root of 47794864 is about 362.9056614454.

The spelling of 47794864 in words is "forty-seven million, seven hundred ninety-four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 13 16 26 47 52 94 104 188 208 376 611 752 1222 2444 4888 4889 9776 9778 19556 39112 63557 78224 127114 229783 254228 459566 508456 919132 1016912 1838264 2987179 3676528 5974358 11948716 23897432 47794864