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22103032231 = 76991451663
BaseRepresentation
bin10100100101011100…
…011000000110100111
32010001101202101010101
4110211130120012213
5330231334012411
614053132404531
71411506450130
oct244534300647
963041671111
1022103032231
119412649295
12434a316747
1321132b79c7
1410d9720c87
158956d18c1
hex5257181a7

22103032231 has 8 divisors (see below), whose sum is σ = 25264277504. Its totient is φ = 18942704280.

The previous prime is 22103032229. The next prime is 22103032241. The reversal of 22103032231 is 13223030122.

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 22103032231 - 21 = 22103032229 is a prime.

It is a super-2 number, since 2×221030322312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22103032199 and 22103032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103032241) 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, 176895 + ... + 274768.

It is an arithmetic number, because the mean of its divisors is an integer number (3158034688).

Almost surely, 222103032231 is an apocalyptic number.

22103032231 is a deficient number, since it is larger than the sum of its proper divisors (3161245273).

22103032231 is an equidigital number, since it uses as much as digits as its factorization.

22103032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458661.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22103032231 its reverse (13223030122), we get a palindrome (35326062353).

The spelling of 22103032231 in words is "twenty-two billion, one hundred three million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 7 6991 48937 451663 3161641 3157576033 22103032231