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23312109 = 337210019
BaseRepresentation
bin101100011101…
…1011011101101
31121212101012110
41120323123231
521431441414
62151354233
7402102222
oct130733355
947771173
1023312109
1112182807
127982979
134aa2b62
14314b949
1520a7459
hex163b6ed

23312109 has 8 divisors (see below), whose sum is σ = 31923040. Its totient is φ = 15121296.

The previous prime is 23312101. The next prime is 23312119. The reversal of 23312109 is 90121332.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23312109 - 23 = 23312101 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 (23312101) 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, 104899 + ... + 105120.

It is an arithmetic number, because the mean of its divisors is an integer number (3990380).

Almost surely, 223312109 is an apocalyptic number.

It is an amenable number.

23312109 is a deficient number, since it is larger than the sum of its proper divisors (8610931).

23312109 is a wasteful number, since it uses less digits than its factorization.

23312109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210059.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 23312109 is about 4828.2614883620. The cubic root of 23312109 is about 285.6672944980.

The spelling of 23312109 in words is "twenty-three million, three hundred twelve thousand, one hundred nine".

Divisors: 1 3 37 111 210019 630057 7770703 23312109