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23001357 = 3172319609
BaseRepresentation
bin101011110111…
…1100100001101
31121021120221010
41113233210031
521342020412
62140555433
7366336231
oct127574415
947246833
1023001357
1111a90295
127852b79
1349c4592
1430aa5c1
15204533c
hex15ef90d

23001357 has 16 divisors (see below), whose sum is σ = 33886080. Its totient is φ = 13804032.

The previous prime is 23001353. The next prime is 23001367. The reversal of 23001357 is 75310032.

It is a happy number.

It is not a de Polignac number, because 23001357 - 22 = 23001353 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8632 + ... + 10977.

It is an arithmetic number, because the mean of its divisors is an integer number (2117880).

Almost surely, 223001357 is an apocalyptic number.

It is an amenable number.

23001357 is a deficient number, since it is larger than the sum of its proper divisors (10884723).

23001357 is a wasteful number, since it uses less digits than its factorization.

23001357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19652.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 23001357 is about 4795.9729982559. The cubic root of 23001357 is about 284.3922908136.

Adding to 23001357 its reverse (75310032), we get a palindrome (98311389).

The spelling of 23001357 in words is "twenty-three million, one thousand, three hundred fifty-seven".

Divisors: 1 3 17 23 51 69 391 1173 19609 58827 333353 451007 1000059 1353021 7667119 23001357