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22230232100 = 2252222302321
BaseRepresentation
bin10100101101000001…
…100110110000100100
32010101021002210112122
4110231001212300210
5331011414411400
614113515005112
71414612566206
oct245501466044
963337083478
1022230232100
11947842844a
124384a39798
132133762abb
14110c592776
158a195a685
hex52d066c24

22230232100 has 18 divisors (see below), whose sum is σ = 48239603874. Its totient is φ = 8892092800.

The previous prime is 22230232099. The next prime is 22230232109. The reversal of 22230232100 is 123203222.

It can be written as a sum of positive squares in 3 ways, for example, as 18496 + 22230213604 = 136^2 + 149098^2 .

It is not an unprimeable number, because it can be changed into a prime (22230232109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111151061 + ... + 111151260.

It is an arithmetic number, because the mean of its divisors is an integer number (2679977993).

Almost surely, 222230232100 is an apocalyptic number.

22230232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22230232100 is an abundant number, since it is smaller than the sum of its proper divisors (26009371774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22230232100 is a wasteful number, since it uses less digits than its factorization.

22230232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222302335 (or 222302328 counting only the distinct ones).

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

Adding to 22230232100 its reverse (123203222), we get a palindrome (22353435322).

The spelling of 22230232100 in words is "twenty-two billion, two hundred thirty million, two hundred thirty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 222302321 444604642 889209284 1111511605 2223023210 4446046420 5557558025 11115116050 22230232100