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23045393 = 77189521
BaseRepresentation
bin101011111101…
…0010100010001
31121100211100002
41113322110101
521344423033
62141535345
7366611510
oct127722421
947324302
1023045393
1112010388
127874555
134a0b637
1430bc677
1520533e8
hex15fa511

23045393 has 16 divisors (see below), whose sum is σ = 27060480. Its totient is φ = 19219200.

The previous prime is 23045381. The next prime is 23045437. The reversal of 23045393 is 39354032.

It is not a de Polignac number, because 23045393 - 28 = 23045137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23041393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43973 + ... + 44493.

It is an arithmetic number, because the mean of its divisors is an integer number (1691280).

Almost surely, 223045393 is an apocalyptic number.

It is an amenable number.

23045393 is a deficient number, since it is larger than the sum of its proper divisors (4015087).

23045393 is an equidigital number, since it uses as much as digits as its factorization.

23045393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 23045393 is about 4800.5617379636. The cubic root of 23045393 is about 284.5736643929.

The spelling of 23045393 in words is "twenty-three million, forty-five thousand, three hundred ninety-three".

Divisors: 1 7 71 89 497 521 623 3647 6319 36991 44233 46369 258937 324583 3292199 23045393