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22996949 = 40157349
BaseRepresentation
bin101011110111…
…0011111010101
31121021100212212
41113232133111
521341400244
62140523205
7366320333
oct127563725
947240785
1022996949
1111a87a48
127850505
1349c2581
1430a8b53
152043d9e
hex15ee7d5

22996949 has 4 divisors (see below), whose sum is σ = 23054700. Its totient is φ = 22939200.

The previous prime is 22996933. The next prime is 22996951. The reversal of 22996949 is 94969922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19518724 + 3478225 = 4418^2 + 1865^2 .

It is a cyclic number.

It is not a de Polignac number, because 22996949 - 24 = 22996933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22996897 and 22996906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22996999) 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 3 ways as a sum of consecutive naturals, for example, 28274 + ... + 29075.

It is an arithmetic number, because the mean of its divisors is an integer number (5763675).

Almost surely, 222996949 is an apocalyptic number.

It is an amenable number.

22996949 is a deficient number, since it is larger than the sum of its proper divisors (57751).

22996949 is an equidigital number, since it uses as much as digits as its factorization.

22996949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57750.

The product of its digits is 629856, while the sum is 50.

The square root of 22996949 is about 4795.5134240246. The cubic root of 22996949 is about 284.3741225912.

The spelling of 22996949 in words is "twenty-two million, nine hundred ninety-six thousand, nine hundred forty-nine".

Divisors: 1 401 57349 22996949