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47902692 = 2233991891
BaseRepresentation
bin1011011010111…
…0111111100100
310100010201010210
42312232333210
544230341232
64430415420
71121110665
oct266567744
9110121123
1047902692
1125049002
1214061570
139c028b6
14650d36c
1543135cc
hex2daefe4

47902692 has 12 divisors (see below), whose sum is σ = 111772976. Its totient is φ = 15967560.

The previous prime is 47902691. The next prime is 47902709. The reversal of 47902692 is 29620974.

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

It is a self number, because there is not a number n which added to its sum of digits gives 47902692.

It is not an unprimeable number, because it can be changed into a prime (47902691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1995934 + ... + 1995957.

Almost surely, 247902692 is an apocalyptic number.

It is an amenable number.

47902692 is an abundant number, since it is smaller than the sum of its proper divisors (63870284).

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

47902692 is a wasteful number, since it uses less digits than its factorization.

47902692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991898 (or 3991896 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 47902692 is about 6921.1770675225. The cubic root of 47902692 is about 363.1783685779.

The spelling of 47902692 in words is "forty-seven million, nine hundred two thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 12 3991891 7983782 11975673 15967564 23951346 47902692