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47081952 = 253354493
BaseRepresentation
bin1011001110011…
…0100111100000
310021121000022000
42303212213200
544023110302
64401044000
71111122111
oct263464740
9107530260
1047081952
1124638405
1213926600
1399a6158
146378208
15420031c
hex2ce69e0

47081952 has 48 divisors (see below), whose sum is σ = 137324880. Its totient is φ = 15693696.

The previous prime is 47081939. The next prime is 47081971. The reversal of 47081952 is 25918074.

47081952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26383 + ... + 28110.

It is an arithmetic number, because the mean of its divisors is an integer number (2860935).

Almost surely, 247081952 is an apocalyptic number.

It is an amenable number.

47081952 is an abundant number, since it is smaller than the sum of its proper divisors (90242928).

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

47081952 is a wasteful number, since it uses less digits than its factorization.

47081952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54512 (or 54498 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 47081952 is about 6861.6289611141. The cubic root of 47081952 is about 361.0922383580.

The spelling of 47081952 in words is "forty-seven million, eighty-one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 54493 108986 163479 217972 326958 435944 490437 653916 871888 980874 1307832 1471311 1743776 1961748 2615664 2942622 3923496 5231328 5885244 7846992 11770488 15693984 23540976 47081952