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47198980 = 2252359949
BaseRepresentation
bin1011010000001…
…1001100000100
310021210221211101
42310003030010
544040331410
64403345444
71112120233
oct264031404
9107727741
1047198980
1124708324
1213982284
139a174ba
1463a8b1a
154224d3a
hex2d03304

47198980 has 12 divisors (see below), whose sum is σ = 99117900. Its totient is φ = 18879584.

The previous prime is 47198971. The next prime is 47198981. The reversal of 47198980 is 8989174.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10329796 + 36869184 = 3214^2 + 6072^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47198980.

It is not an unprimeable number, because it can be changed into a prime (47198981) 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, 1179955 + ... + 1179994.

It is an arithmetic number, because the mean of its divisors is an integer number (8259825).

Almost surely, 247198980 is an apocalyptic number.

It is an amenable number.

47198980 is an abundant number, since it is smaller than the sum of its proper divisors (51918920).

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

47198980 is a wasteful number, since it uses less digits than its factorization.

47198980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359958 (or 2359956 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 47198980 is about 6870.1513811560. The cubic root of 47198980 is about 361.3911705852.

The spelling of 47198980 in words is "forty-seven million, one hundred ninety-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2359949 4719898 9439796 11799745 23599490 47198980