47920130 has 8 divisors (see below), whose sum is σ = 86256252. Its totient is φ = 19168048.

The previous prime is 47920129. The next prime is 47920153. The reversal of 47920130 is 3102974.

It can be written as a sum of positive squares in 2 ways, for example, as 43705321 + 4214809 = 6611^2 + 2053^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 47920130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395997 + ... + 2396016.

Almost surely, 2^47920130 is an apocalyptic number.

47920130 is a deficient number, since it is larger than the sum of its proper divisors (38336122).

47920130 is a wasteful number, since it uses less digits than its factorization.

47920130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792020.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 47920130 is about 6922.4367097143. The cubic root of 47920130 is about 363.2224324624. Note that the first 3 decimals are identical.

The spelling of 47920130 in words is "forty-seven million, nine hundred twenty thousand, one hundred thirty".