Search a number
-
+
47391468 = 2237949991
BaseRepresentation
bin1011010011001…
…0001011101100
310022011201212120
42310302023230
544113011333
64411432540
71113551355
oct264621354
9108151776
1047391468
1124829a03
1213a55750
139a83cb7
146418d2c
154261db3
hex2d322ec

47391468 has 24 divisors (see below), whose sum is σ = 111982080. Its totient is φ = 15596880.

The previous prime is 47391439. The next prime is 47391479. The reversal of 47391468 is 86419374.

47391468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 24048 + ... + 25943.

It is an arithmetic number, because the mean of its divisors is an integer number (4665920).

Almost surely, 247391468 is an apocalyptic number.

It is an amenable number.

47391468 is an abundant number, since it is smaller than the sum of its proper divisors (64590612).

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

47391468 is a wasteful number, since it uses less digits than its factorization.

47391468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50077 (or 50075 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 47391468 is about 6884.1461344164. The cubic root of 47391468 is about 361.8817822623.

The spelling of 47391468 in words is "forty-seven million, three hundred ninety-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 79 158 237 316 474 948 49991 99982 149973 199964 299946 599892 3949289 7898578 11847867 15797156 23695734 47391468