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22953013 = 43975503
BaseRepresentation
bin101011110001…
…1110000110101
31121012010121121
41113203300311
521333444023
62135543541
7366045256
oct127436065
947163547
1022953013
1111a57a36
12782abb1
1349a8585
143096b2d
152035d5d
hex15e3c35

22953013 has 8 divisors (see below), whose sum is σ = 23733248. Its totient is φ = 22184064.

The previous prime is 22952999. The next prime is 22953037. The reversal of 22953013 is 31035922.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22953013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22953053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1420 + ... + 6922.

It is an arithmetic number, because the mean of its divisors is an integer number (2966656).

Almost surely, 222953013 is an apocalyptic number.

It is an amenable number.

22953013 is a deficient number, since it is larger than the sum of its proper divisors (780235).

22953013 is an equidigital number, since it uses as much as digits as its factorization.

22953013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5643.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 22953013 is about 4790.9302854456. The cubic root of 22953013 is about 284.1929068608.

Adding to 22953013 its reverse (31035922), we get a palindrome (53988935).

The spelling of 22953013 in words is "twenty-two million, nine hundred fifty-three thousand, thirteen".

Divisors: 1 43 97 4171 5503 236629 533791 22953013