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23742930 = 235791431
BaseRepresentation
bin101101010010…
…0100111010010
31122200021011210
41122210213102
522034233210
62204520550
7405545241
oct132444722
948607153
1023742930
1112447462
127b50156
134bc3c93
143220958
15213ee20
hex16a49d2

23742930 has 16 divisors (see below), whose sum is σ = 56983104. Its totient is φ = 6331440.

The previous prime is 23742881. The next prime is 23742997. The reversal of 23742930 is 3924732.

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: 791431 = 23742930 / (2 + 3 + 7 + 4 + 2 + 9 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395686 + ... + 395745.

It is an arithmetic number, because the mean of its divisors is an integer number (3561444).

Almost surely, 223742930 is an apocalyptic number.

23742930 is an abundant number, since it is smaller than the sum of its proper divisors (33240174).

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

23742930 is a wasteful number, since it uses less digits than its factorization.

23742930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791441.

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

The square root of 23742930 is about 4872.6717517190. The cubic root of 23742930 is about 287.4163285184.

The spelling of 23742930 in words is "twenty-three million, seven hundred forty-two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 791431 1582862 2374293 3957155 4748586 7914310 11871465 23742930