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22445002465 = 515497289669
BaseRepresentation
bin10100111001110100…
…111000111011100001
32010221020020021002121
4110321310320323201
5331431410034330
614151110144241
71423131241654
oct247164707341
963836207077
1022445002465
119578689616
124424952081
1321690bc062
14112ccdb89b
158b573117a
hex539d38ee1

22445002465 has 8 divisors (see below), whose sum is σ = 26935833960. Its totient is φ = 17954781312.

The previous prime is 22445002457. The next prime is 22445002477. The reversal of 22445002465 is 56420054422.

It can be written as a sum of positive squares in 4 ways, for example, as 15704099856 + 6740902609 = 125316^2 + 82103^2 .

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 22445002465 - 23 = 22445002457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22445002465.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67350 + ... + 222319.

It is an arithmetic number, because the mean of its divisors is an integer number (3366979245).

Almost surely, 222445002465 is an apocalyptic number.

It is an amenable number.

22445002465 is a deficient number, since it is larger than the sum of its proper divisors (4490831495).

22445002465 is a wasteful number, since it uses less digits than its factorization.

22445002465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305171.

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 22445002465 its reverse (56420054422), we get a palindrome (78865056887).

The spelling of 22445002465 in words is "twenty-two billion, four hundred forty-five million, two thousand, four hundred sixty-five".

Divisors: 1 5 15497 77485 289669 1448345 4489000493 22445002465