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23103109 = 231004483
BaseRepresentation
bin101100000100…
…0011010000101
31121110202111201
41120020122011
521403244414
62143102501
7400242001
oct130103205
947422451
1023103109
111204a787
1278a1a31
134a2b9a3
1430d5701
152065574
hex1608685

23103109 has 4 divisors (see below), whose sum is σ = 24107616. Its totient is φ = 22098604.

The previous prime is 23103103. The next prime is 23103121. The reversal of 23103109 is 90130132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23103109 - 25 = 23103077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23103103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502219 + ... + 502264.

It is an arithmetic number, because the mean of its divisors is an integer number (6026904).

Almost surely, 223103109 is an apocalyptic number.

It is an amenable number.

23103109 is a deficient number, since it is larger than the sum of its proper divisors (1004507).

23103109 is a wasteful number, since it uses less digits than its factorization.

23103109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004506.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 23103109 is about 4806.5693587007. The cubic root of 23103109 is about 284.8110330398.

The spelling of 23103109 in words is "twenty-three million, one hundred three thousand, one hundred nine".

Divisors: 1 23 1004483 23103109