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47999660 = 2252399983
BaseRepresentation
bin1011011100011…
…0101010101100
310100022122011012
42313012222230
544241442120
64432444352
71121663462
oct267065254
9110278135
1047999660
1125104945
12140a96b8
139c37a87
146536832
1543321c5
hex2dc6aac

47999660 has 12 divisors (see below), whose sum is σ = 100799328. Its totient is φ = 19199856.

The previous prime is 47999659. The next prime is 47999663. The reversal of 47999660 is 6699974.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47999599 and 47999608.

It is not an unprimeable number, because it can be changed into a prime (47999663) 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, 1199972 + ... + 1200011.

It is an arithmetic number, because the mean of its divisors is an integer number (8399944).

Almost surely, 247999660 is an apocalyptic number.

It is an amenable number.

47999660 is an abundant number, since it is smaller than the sum of its proper divisors (52799668).

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

47999660 is a wasteful number, since it uses less digits than its factorization.

47999660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399992 (or 2399990 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 50.

The square root of 47999660 is about 6928.1786928456. The cubic root of 47999660 is about 363.4232604797.

The spelling of 47999660 in words is "forty-seven million, nine hundred ninety-nine thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 2399983 4799966 9599932 11999915 23999830 47999660