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22213200231 = 323766706307
BaseRepresentation
bin10100101100000000…
…101000100101100111
32010100002001111012200
4110230000220211213
5330443034401411
614112105545543
71414315041465
oct245400504547
963302044180
1022213200231
119469855122
12437b1a52b3
13213007b681
14110a1db835
158a01e3e56
hex52c028967

22213200231 has 12 divisors (see below), whose sum is σ = 32952916152. Its totient is φ = 14408562096.

The previous prime is 22213200223. The next prime is 22213200253. The reversal of 22213200231 is 13200231222.

22213200231 is a `hidden beast` number, since 22 + 213 + 200 + 231 = 666.

It is not a de Polignac number, because 22213200231 - 23 = 22213200223 is a prime.

It is a super-2 number, since 2×222132002312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213200271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33352821 + ... + 33353486.

It is an arithmetic number, because the mean of its divisors is an integer number (2746076346).

Almost surely, 222213200231 is an apocalyptic number.

22213200231 is a deficient number, since it is larger than the sum of its proper divisors (10739715921).

22213200231 is a wasteful number, since it uses less digits than its factorization.

22213200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66706350 (or 66706347 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22213200231 its reverse (13200231222), we get a palindrome (35413431453).

The spelling of 22213200231 in words is "twenty-two billion, two hundred thirteen million, two hundred thousand, two hundred thirty-one".

Divisors: 1 3 9 37 111 333 66706307 200118921 600356763 2468133359 7404400077 22213200231