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22972051 = 613591049
BaseRepresentation
bin101011110100…
…0011010010011
31121020002201201
41113220122103
521340101201
62140212031
7366154624
oct127503223
947202651
1022972051
1111a70273
12783a017
1349b413b
14309da4b
15203b801
hex15e8693

22972051 has 8 divisors (see below), whose sum is σ = 23436000. Its totient is φ = 22511040.

The previous prime is 22972003. The next prime is 22972067. The reversal of 22972051 is 15027922.

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

It is a cyclic number.

It is not a de Polignac number, because 22972051 - 215 = 22939283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22972451) 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 7 ways as a sum of consecutive naturals, for example, 21375 + ... + 22423.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 222972051 is an apocalyptic number.

22972051 is a deficient number, since it is larger than the sum of its proper divisors (463949).

22972051 is a wasteful number, since it uses less digits than its factorization.

22972051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 22972051 is about 4792.9167528761. The cubic root of 22972051 is about 284.2714581949.

Adding to 22972051 its reverse (15027922), we get a palindrome (37999973).

The spelling of 22972051 in words is "twenty-two million, nine hundred seventy-two thousand, fifty-one".

Divisors: 1 61 359 1049 21899 63989 376591 22972051