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47663898 = 237943983
BaseRepresentation
bin1011010111010…
…0101100011010
310022200120120120
42311310230122
544200221043
64421334110
71116064542
oct265645432
9108616516
1047663898
11249a5657
1213b67336
139b4acb9
14648a322
1542b7983
hex2d74b1a

47663898 has 8 divisors (see below), whose sum is σ = 95327808. Its totient is φ = 15887964.

The previous prime is 47663897. The next prime is 47663911. The reversal of 47663898 is 89836674.

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

47663898 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 47663898.

It is not an unprimeable number, because it can be changed into a prime (47663893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971986 + ... + 3971997.

It is an arithmetic number, because the mean of its divisors is an integer number (11915976).

Almost surely, 247663898 is an apocalyptic number.

47663898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

47663898 is a wasteful number, since it uses less digits than its factorization.

47663898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943988.

The product of its digits is 1741824, while the sum is 51.

The square root of 47663898 is about 6903.9045474282. The cubic root of 47663898 is about 362.5738839492.

The spelling of 47663898 in words is "forty-seven million, six hundred sixty-three thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 7943983 15887966 23831949 47663898