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22954997 = 131765769
BaseRepresentation
bin101011110010…
…0001111110101
31121012020100002
41113210033311
521334024442
62140001045
7366054122
oct127441765
947166302
1022954997
1111a5947a
127830185
1349a9450
143097749
152036732
hex15e43f5

22954997 has 4 divisors (see below), whose sum is σ = 24720780. Its totient is φ = 21189216.

The previous prime is 22954949. The next prime is 22955003. The reversal of 22954997 is 79945922.

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 1739761 + 21215236 = 1319^2 + 4606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22954997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22954297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882872 + ... + 882897.

It is an arithmetic number, because the mean of its divisors is an integer number (6180195).

Almost surely, 222954997 is an apocalyptic number.

It is an amenable number.

22954997 is a deficient number, since it is larger than the sum of its proper divisors (1765783).

22954997 is a wasteful number, since it uses less digits than its factorization.

22954997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765782.

The product of its digits is 408240, while the sum is 47.

The square root of 22954997 is about 4791.1373388789. The cubic root of 22954997 is about 284.2010949286.

The spelling of 22954997 in words is "twenty-two million, nine hundred fifty-four thousand, nine hundred ninety-seven".

Divisors: 1 13 1765769 22954997