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23144230025 = 527265328933
BaseRepresentation
bin10101100011100000…
…001110110010001001
32012201221221200222122
4111203200032302021
5334344410330100
614344325101025
71446351465200
oct254340166211
965657850878
1023144230025
1198a7350634
12459ab57775
13224ac1a987
141197b14237
15906cee985
hex56380ec89

23144230025 has 36 divisors (see below), whose sum is σ = 33436651212. Its totient is φ = 15845477760.

The previous prime is 23144230019. The next prime is 23144230037. The reversal of 23144230025 is 52003244132.

It can be written as a sum of positive squares in 6 ways, for example, as 1642113529 + 21502116496 = 40523^2 + 146636^2 .

It is not a de Polignac number, because 23144230025 - 210 = 23144229001 is a prime.

It is a super-2 number, since 2×231442300252 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23144229976 and 23144230003.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 785459 + ... + 814391.

It is an arithmetic number, because the mean of its divisors is an integer number (928795867).

Almost surely, 223144230025 is an apocalyptic number.

23144230025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23144230025 is a deficient number, since it is larger than the sum of its proper divisors (10292421187).

23144230025 is a wasteful number, since it uses less digits than its factorization.

23144230025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29610 (or 29598 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 23144230025 its reverse (52003244132), we get a palindrome (75147474157).

The spelling of 23144230025 in words is "twenty-three billion, one hundred forty-four million, two hundred thirty thousand, twenty-five".

Divisors: 1 5 7 25 35 49 175 245 653 1225 3265 4571 16325 22855 28933 31997 114275 144665 159985 202531 723325 799925 1012655 1417717 5063275 7088585 18893249 35442925 94466245 132252743 472331225 661263715 925769201 3306318575 4628846005 23144230025