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23270730 = 2357110813
BaseRepresentation
bin101100011000…
…1010101001010
31121210021102220
41120301111022
521424130410
62150434510
7401540460
oct130612512
947707386
1023270730
111215470a
127962a36
134a8a082
14313a830
15209a070
hex163154a

23270730 has 32 divisors (see below), whose sum is σ = 63828864. Its totient is φ = 5318976.

The previous prime is 23270729. The next prime is 23270759. The reversal of 23270730 is 3707232.

It is a self number, because there is not a number n which added to its sum of digits gives 23270730.

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 15 ways as a sum of consecutive naturals, for example, 55197 + ... + 55616.

It is an arithmetic number, because the mean of its divisors is an integer number (1994652).

Almost surely, 223270730 is an apocalyptic number.

23270730 is an abundant number, since it is smaller than the sum of its proper divisors (40558134).

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

23270730 is a wasteful number, since it uses less digits than its factorization.

23270730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110830.

The product of its (nonzero) digits is 1764, while the sum is 24.

The square root of 23270730 is about 4823.9745024202. The cubic root of 23270730 is about 285.4981745533.

Adding to 23270730 its reverse (3707232), we get a palindrome (26977962).

The spelling of 23270730 in words is "twenty-three million, two hundred seventy thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 110813 221626 332439 554065 664878 775691 1108130 1551382 1662195 2327073 3324390 3878455 4654146 7756910 11635365 23270730