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22011230023 = 2316334916823
BaseRepresentation
bin10100011111111110…
…001011011101000111
32002211000000100011121
4110133332023131013
5330034333330043
614040053014411
71406313240166
oct243776133507
962730010147
1022011230023
1193758469a2
124323624407
1320ca284683
1410cb4653dd
1588c5eaded
hex51ff8b747

22011230023 has 16 divisors (see below), whose sum is σ = 23176742400. Its totient is φ = 20863855584.

The previous prime is 22011230011. The next prime is 22011230093. The reversal of 22011230023 is 32003211022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22011230023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22011229979 and 22011230006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011230093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1299990 + ... + 1316812.

It is an arithmetic number, because the mean of its divisors is an integer number (1448546400).

Almost surely, 222011230023 is an apocalyptic number.

22011230023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22011230023 is a deficient number, since it is larger than the sum of its proper divisors (1165512377).

22011230023 is a wasteful number, since it uses less digits than its factorization.

22011230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17358.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22011230023 its reverse (32003211022), we get a palindrome (54014441045).

The spelling of 22011230023 in words is "twenty-two billion, eleven million, two hundred thirty thousand, twenty-three".

Divisors: 1 23 163 349 3749 8027 16823 56887 386929 1308401 2742149 5871227 63069427 135038221 957010001 22011230023