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47990859 = 372285279
BaseRepresentation
bin1011011100010…
…0100001001011
310100022012002020
42313010201023
544241201414
64432335523
71121626020
oct267044113
9110265066
1047990859
11250a9274
12140a45a3
139c33a77
146533547
15432e7a9
hex2dc484b

47990859 has 8 divisors (see below), whose sum is σ = 73128960. Its totient is φ = 27423336.

The previous prime is 47990819. The next prime is 47990861. The reversal of 47990859 is 95809974.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47990859 - 27 = 47990731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47990809) 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, 1142619 + ... + 1142660.

It is an arithmetic number, because the mean of its divisors is an integer number (9141120).

Almost surely, 247990859 is an apocalyptic number.

47990859 is a deficient number, since it is larger than the sum of its proper divisors (25138101).

47990859 is a wasteful number, since it uses less digits than its factorization.

47990859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285289.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 47990859 is about 6927.5435040135. The cubic root of 47990859 is about 363.4010472416.

The spelling of 47990859 in words is "forty-seven million, nine hundred ninety thousand, eight hundred fifty-nine".

Divisors: 1 3 7 21 2285279 6855837 15996953 47990859