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23045217 = 3131734759
BaseRepresentation
bin101011111101…
…0010001100001
31121100211002120
41113322101201
521344421332
62141534453
7366611136
oct127722141
947324076
1023045217
1112010238
127874429
134a0b530
1430bc58d
15205332c
hex15fa461

23045217 has 16 divisors (see below), whose sum is σ = 35038080. Its totient is φ = 13347072.

The previous prime is 23045207. The next prime is 23045219. The reversal of 23045217 is 71254032.

It is not a de Polignac number, because 23045217 - 24 = 23045201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23045219) 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, 16717 + ... + 18042.

It is an arithmetic number, because the mean of its divisors is an integer number (2189880).

Almost surely, 223045217 is an apocalyptic number.

It is an amenable number.

23045217 is a deficient number, since it is larger than the sum of its proper divisors (11992863).

23045217 is a wasteful number, since it uses less digits than its factorization.

23045217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34792.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 23045217 is about 4800.5434067405. The cubic root of 23045217 is about 284.5729399518.

Adding to 23045217 its reverse (71254032), we get a palindrome (94299249).

The spelling of 23045217 in words is "twenty-three million, forty-five thousand, two hundred seventeen".

Divisors: 1 3 13 17 39 51 221 663 34759 104277 451867 590903 1355601 1772709 7681739 23045217