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23107830 = 235770261
BaseRepresentation
bin101100000100…
…1100011110110
31121110222222120
41120021203312
521403422310
62143140410
7400261524
oct130114366
947428876
1023107830
1112053289
1278a4706
134a30b95
1430d7314
152066b70
hex16098f6

23107830 has 16 divisors (see below), whose sum is σ = 55458864. Its totient is φ = 6162080.

The previous prime is 23107829. The next prime is 23107853. The reversal of 23107830 is 3870132.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23107830.

It is a congruent number.

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, 385101 + ... + 385160.

It is an arithmetic number, because the mean of its divisors is an integer number (3466179).

Almost surely, 223107830 is an apocalyptic number.

23107830 is an abundant number, since it is smaller than the sum of its proper divisors (32351034).

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

23107830 is a wasteful number, since it uses less digits than its factorization.

23107830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770271.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 23107830 is about 4807.0604323224. The cubic root of 23107830 is about 284.8304316023.

Adding to 23107830 its reverse (3870132), we get a palindrome (26977962).

The spelling of 23107830 in words is "twenty-three million, one hundred seven thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 770261 1540522 2310783 3851305 4621566 7702610 11553915 23107830