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22230301525 = 525211706741
BaseRepresentation
bin10100101101000001…
…110111101101010101
32010101021020022202221
4110231001313231111
5331011424122100
614113520302341
71414613305465
oct245501675525
963337208687
1022230301525
119478475623
124384a719b1
132133788593
14110c5adba5
158a197101a
hex52d077b55

22230301525 has 12 divisors (see below), whose sum is σ = 27618499044. Its totient is φ = 17750096000.

The previous prime is 22230301523. The next prime is 22230301547. The reversal of 22230301525 is 52510303222.

It can be written as a sum of positive squares in 6 ways, for example, as 1005016804 + 21225284721 = 31702^2 + 145689^2 .

It is not a de Polignac number, because 22230301525 - 21 = 22230301523 is a prime.

It is a super-3 number, since 3×222303015253 (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22230301525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230301523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 840346 + ... + 866395.

It is an arithmetic number, because the mean of its divisors is an integer number (2301541587).

Almost surely, 222230301525 is an apocalyptic number.

22230301525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22230301525 is a deficient number, since it is larger than the sum of its proper divisors (5388197519).

22230301525 is a wasteful number, since it uses less digits than its factorization.

22230301525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707272 (or 1707267 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 22230301525 its reverse (52510303222), we get a palindrome (74740604747).

The spelling of 22230301525 in words is "twenty-two billion, two hundred thirty million, three hundred one thousand, five hundred twenty-five".

Divisors: 1 5 25 521 2605 13025 1706741 8533705 42668525 889212061 4446060305 22230301525