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22530234245 = 519323347393
BaseRepresentation
bin10100111110111010…
…000001011110000101
32011011011121111010012
4110332322001132011
5332120214443440
614203353040005
71425214555061
oct247672013605
964134544105
1022530234245
119611803502
1244493b6005
13218096186c
14113a366aa1
158bce69e65
hex53ee81785

22530234245 has 8 divisors (see below), whose sum is σ = 27176366616. Its totient is φ = 17930797056.

The previous prime is 22530234203. The next prime is 22530234277. The reversal of 22530234245 is 54243203522.

It can be written as a sum of positive squares in 4 ways, for example, as 4299293761 + 18230940484 = 65569^2 + 135022^2 .

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 22530234245 - 210 = 22530233221 is a prime.

It is a super-2 number, since 2×225302342452 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11672732 + ... + 11674661.

It is an arithmetic number, because the mean of its divisors is an integer number (3397045827).

Almost surely, 222530234245 is an apocalyptic number.

It is an amenable number.

22530234245 is a deficient number, since it is larger than the sum of its proper divisors (4646132371).

22530234245 is a wasteful number, since it uses less digits than its factorization.

22530234245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23347591.

The product of its (nonzero) digits is 57600, while the sum is 32.

Adding to 22530234245 its reverse (54243203522), we get a palindrome (76773437767).

The spelling of 22530234245 in words is "twenty-two billion, five hundred thirty million, two hundred thirty-four thousand, two hundred forty-five".

Divisors: 1 5 193 965 23347393 116736965 4506046849 22530234245