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47297868 = 2237353993
BaseRepresentation
bin1011010001101…
…1010101001100
310021222222110220
42310123111030
544102012433
64405431340
71113011442
oct264332514
9107888426
1047297868
1124775652
1213a0b550
139a50507
1463d2b92
1542442b3
hex2d1b54c

47297868 has 24 divisors (see below), whose sum is σ = 111875568. Its totient is φ = 15549696.

The previous prime is 47297863. The next prime is 47297917. The reversal of 47297868 is 86879274.

47297868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 47297868.

It is not an unprimeable number, because it can be changed into a prime (47297863) by changing a digit.

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, 26121 + ... + 27872.

It is an arithmetic number, because the mean of its divisors is an integer number (4661482).

Almost surely, 247297868 is an apocalyptic number.

It is an amenable number.

47297868 is an abundant number, since it is smaller than the sum of its proper divisors (64577700).

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

47297868 is a wasteful number, since it uses less digits than its factorization.

47297868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54073 (or 54071 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 47297868 is about 6877.3445456804. The cubic root of 47297868 is about 361.6433816925.

The spelling of 47297868 in words is "forty-seven million, two hundred ninety-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 53993 107986 161979 215972 323958 647916 3941489 7882978 11824467 15765956 23648934 47297868