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47923230 = 2351597441
BaseRepresentation
bin1011011011010…
…0000000011110
310100011202022110
42312310000132
544232020410
64431054450
71121224605
oct266640036
9110152273
1047923230
1125062483
1214071426
139c0c054
146516a3c
154319720
hex2db401e

47923230 has 16 divisors (see below), whose sum is σ = 115015824. Its totient is φ = 12779520.

The previous prime is 47923223. The next prime is 47923231. The reversal of 47923230 is 3232974.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1597441 = 47923230 / (4 + 7 + 9 + 2 + 3 + 2 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47923231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798691 + ... + 798750.

It is an arithmetic number, because the mean of its divisors is an integer number (7188489).

Almost surely, 247923230 is an apocalyptic number.

47923230 is an abundant number, since it is smaller than the sum of its proper divisors (67092594).

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

47923230 is a wasteful number, since it uses less digits than its factorization.

47923230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597451.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 47923230 is about 6922.6606156882. The cubic root of 47923230 is about 363.2302646981.

The spelling of 47923230 in words is "forty-seven million, nine hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 1597441 3194882 4792323 7987205 9584646 15974410 23961615 47923230