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23121093 = 373910429
BaseRepresentation
bin101100000110…
…0110011000101
31121111200011210
41120030303011
521404333333
62143322033
7400345302
oct130146305
947450153
1023121093
1112062246
1278b0319
134a36c28
1430dc0a9
15206aa63
hex160ccc5

23121093 has 8 divisors (see below), whose sum is σ = 30872800. Its totient is φ = 15391728.

The previous prime is 23121073. The next prime is 23121101. The reversal of 23121093 is 39012132.

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 23121093 - 28 = 23120837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2998 + ... + 7431.

It is an arithmetic number, because the mean of its divisors is an integer number (3859100).

Almost surely, 223121093 is an apocalyptic number.

It is an amenable number.

23121093 is a deficient number, since it is larger than the sum of its proper divisors (7751707).

23121093 is a wasteful number, since it uses less digits than its factorization.

23121093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11171.

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

The square root of 23121093 is about 4808.4397677417. The cubic root of 23121093 is about 284.8849150608.

The spelling of 23121093 in words is "twenty-three million, one hundred twenty-one thousand, ninety-three".

Divisors: 1 3 739 2217 10429 31287 7707031 23121093