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23032313 = 191212227
BaseRepresentation
bin101011111011…
…1000111111001
31121100011101122
41113313013321
521344013223
62141355025
7366525413
oct127670771
947304348
1023032313
1112001577
127868a75
134a056b5
1430b79b3
15204e5c8
hex15f71f9

23032313 has 4 divisors (see below), whose sum is σ = 24244560. Its totient is φ = 21820068.

The previous prime is 23032307. The next prime is 23032333. The reversal of 23032313 is 31323032.

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 23032313 - 214 = 23015929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23032291 and 23032300.

It is not an unprimeable number, because it can be changed into a prime (23032333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606095 + ... + 606132.

It is an arithmetic number, because the mean of its divisors is an integer number (6061140).

Almost surely, 223032313 is an apocalyptic number.

It is an amenable number.

23032313 is a deficient number, since it is larger than the sum of its proper divisors (1212247).

23032313 is a wasteful number, since it uses less digits than its factorization.

23032313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212246.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 23032313 is about 4799.1992040339. The cubic root of 23032313 is about 284.5198151924.

Adding to 23032313 its reverse (31323032), we get a palindrome (54355345).

The spelling of 23032313 in words is "twenty-three million, thirty-two thousand, three hundred thirteen".

Divisors: 1 19 1212227 23032313