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22990495 = 511418009
BaseRepresentation
bin101011110110…
…0111010011111
31121021001000211
41113230322133
521341143440
62140433251
7366262453
oct127547237
947231024
1022990495
1111a83110
127848827
1349bc658
1430a6663
152041eea
hex15ece9f

22990495 has 8 divisors (see below), whose sum is σ = 30096720. Its totient is φ = 16720320.

The previous prime is 22990493. The next prime is 22990523. The reversal of 22990495 is 59409922.

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

It is not a de Polignac number, because 22990495 - 21 = 22990493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208950 + ... + 209059.

It is an arithmetic number, because the mean of its divisors is an integer number (3762090).

Almost surely, 222990495 is an apocalyptic number.

22990495 is a deficient number, since it is larger than the sum of its proper divisors (7106225).

22990495 is a wasteful number, since it uses less digits than its factorization.

22990495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418025.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 22990495 is about 4794.8404561570. The cubic root of 22990495 is about 284.3475172893.

The spelling of 22990495 in words is "twenty-two million, nine hundred ninety thousand, four hundred ninety-five".

Divisors: 1 5 11 55 418009 2090045 4598099 22990495