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22230031400 = 2352111150157
BaseRepresentation
bin10100101101000000…
…110101110000101000
32010101020201121020022
4110231000311300220
5331011342001100
614113510420012
71414611102113
oct245500656050
963336647208
1022230031400
119478300685
124384961608
1321336c2645
14110c53d57a
158a191ae85
hex52d035c28

22230031400 has 24 divisors (see below), whose sum is σ = 51684823470. Its totient is φ = 8892012480.

The previous prime is 22230031399. The next prime is 22230031423. The reversal of 22230031400 is 413003222.

It can be written as a sum of positive squares in 3 ways, for example, as 12812881636 + 9417149764 = 113194^2 + 97042^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55574879 + ... + 55575278.

Almost surely, 222230031400 is an apocalyptic number.

22230031400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22230031400 is an abundant number, since it is smaller than the sum of its proper divisors (29454792070).

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

22230031400 is a wasteful number, since it uses less digits than its factorization.

22230031400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111150173 (or 111150164 counting only the distinct ones).

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

Adding to 22230031400 its reverse (413003222), we get a palindrome (22643034622).

The spelling of 22230031400 in words is "twenty-two billion, two hundred thirty million, thirty-one thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 111150157 222300314 444600628 555750785 889201256 1111501570 2223003140 2778753925 4446006280 5557507850 11115015700 22230031400