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47230180 = 2252361509
BaseRepresentation
bin1011010000101…
…0110011100100
310021212112121221
42310022303210
544042331210
64404150124
71112310214
oct264126344
9107775557
1047230180
1124729808
1213998344
139a2876a
1463b6244
15422e1da
hex2d0ace4

47230180 has 12 divisors (see below), whose sum is σ = 99183420. Its totient is φ = 18892064.

The previous prime is 47230177. The next prime is 47230187. The reversal of 47230180 is 8103274.

It can be written as a sum of positive squares in 2 ways, for example, as 5161984 + 42068196 = 2272^2 + 6486^2 .

It is not an unprimeable number, because it can be changed into a prime (47230187) 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, 1180735 + ... + 1180774.

It is an arithmetic number, because the mean of its divisors is an integer number (8265285).

Almost surely, 247230180 is an apocalyptic number.

It is an amenable number.

47230180 is an abundant number, since it is smaller than the sum of its proper divisors (51953240).

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

47230180 is a wasteful number, since it uses less digits than its factorization.

47230180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2361518 (or 2361516 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 47230180 is about 6872.4216983535. The cubic root of 47230180 is about 361.4707833295.

The spelling of 47230180 in words is "forty-seven million, two hundred thirty thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2361509 4723018 9446036 11807545 23615090 47230180