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47969268 = 22319120929
BaseRepresentation
bin1011011011111…
…1001111110100
310100021002110120
42312333033310
544240004033
64432051540
71121506044
oct266771764
9110232416
1047969268
1125094026
1214093bb0
139c26ca9
146529724
1543281b3
hex2dbf3f4

47969268 has 24 divisors (see below), whose sum is σ = 112519680. Its totient is φ = 15905280.

The previous prime is 47969261. The next prime is 47969287. The reversal of 47969268 is 86296974.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 47969268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47969261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8173 + ... + 12756.

It is an arithmetic number, because the mean of its divisors is an integer number (4688320).

Almost surely, 247969268 is an apocalyptic number.

It is an amenable number.

47969268 is an abundant number, since it is smaller than the sum of its proper divisors (64550412).

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

47969268 is a wasteful number, since it uses less digits than its factorization.

47969268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21127 (or 21125 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 47969268 is about 6925.9849841015. The cubic root of 47969268 is about 363.3465412438.

The spelling of 47969268 in words is "forty-seven million, nine hundred sixty-nine thousand, two hundred sixty-eight".

Divisors: 1 2 3 4 6 12 191 382 573 764 1146 2292 20929 41858 62787 83716 125574 251148 3997439 7994878 11992317 15989756 23984634 47969268