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22730653 = 116133371
BaseRepresentation
bin101011010110…
…1011110011101
31120202211121001
41112231132131
521304340103
62131110301
7364131061
oct126553635
946684531
1022730653
1111915970
127742391
13492b2ba
143039aa1
151ee001d
hex15ad79d

22730653 has 8 divisors (see below), whose sum is σ = 24844896. Its totient is φ = 20624400.

The previous prime is 22730651. The next prime is 22730663. The reversal of 22730653 is 35603722.

22730653 is a nontrivial binomial coefficient, being equal to C(6743, 2).

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 22730653 - 21 = 22730651 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 (22730651) 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, 5058 + ... + 8428.

It is an arithmetic number, because the mean of its divisors is an integer number (3105612).

Almost surely, 222730653 is an apocalyptic number.

22730653 is the 6742-nd triangular number.

22730653 is the 2248-th centered nonagonal number.

It is an amenable number.

22730653 is a deficient number, since it is larger than the sum of its proper divisors (2114243).

22730653 is a wasteful number, since it uses less digits than its factorization.

22730653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 22730653 is about 4767.6674590412. The cubic root of 22730653 is about 283.2722099598.

The spelling of 22730653 in words is "twenty-two million, seven hundred thirty thousand, six hundred fifty-three".

Divisors: 1 11 613 3371 6743 37081 2066423 22730653