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22300023221 = 7231096771877
BaseRepresentation
bin10100110001001011…
…110101100110110101
32010120010102112221222
4110301023311212311
5331132301220341
614124450520125
71416421032650
oct246113654665
963503375858
1022300023221
119503866563
1243a4296045
13214505a518
14111795c897
158a7b4444b
hex5312f59b5

22300023221 has 32 divisors (see below), whose sum is σ = 26891758080. Its totient is φ = 18079117056.

The previous prime is 22300023217. The next prime is 22300023233. The reversal of 22300023221 is 12232000322.

It is not a de Polignac number, because 22300023221 - 22 = 22300023217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22300023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22300023281) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 11879735 + ... + 11881611.

It is an arithmetic number, because the mean of its divisors is an integer number (840367440).

Almost surely, 222300023221 is an apocalyptic number.

It is an amenable number.

22300023221 is a deficient number, since it is larger than the sum of its proper divisors (4591734859).

22300023221 is a wasteful number, since it uses less digits than its factorization.

22300023221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22300023221 its reverse (12232000322), we get a palindrome (34532023543).

The spelling of 22300023221 in words is "twenty-two billion, three hundred million, twenty-three thousand, two hundred twenty-one".

Divisors: 1 7 23 109 161 677 763 1877 2507 4739 13139 15571 17549 43171 73793 108997 204593 302197 516551 1270729 1432151 1697239 4705639 8895103 11880673 29226767 32939473 138509461 204587369 969566227 3185717603 22300023221