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104311525 = 526173937
BaseRepresentation
bin1100011011110…
…10101011100101
321021021120111211
412031322223211
5203200432100
614203431421
72404430143
oct615725345
9237246454
10104311525
115397687a
122ab25571
13187c30c6
14dbd4593
1592571ba
hex637aae5

104311525 has 24 divisors (see below), whose sum is σ = 133409864. Its totient is φ = 80870400.

The previous prime is 104311523. The next prime is 104311549. The reversal of 104311525 is 525113401.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 81108036 + 23203489 = 9006^2 + 4817^2 .

It is not a de Polignac number, because 104311525 - 21 = 104311523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 104311496 and 104311505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104311523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110857 + ... + 111793.

Almost surely, 2104311525 is an apocalyptic number.

It is an amenable number.

104311525 is a deficient number, since it is larger than the sum of its proper divisors (29098339).

104311525 is an equidigital number, since it uses as much as digits as its factorization.

104311525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 104311525 is about 10213.3013761467. The cubic root of 104311525 is about 470.7360204730.

Adding to 104311525 its reverse (525113401), we get a palindrome (629424926).

The spelling of 104311525 in words is "one hundred four million, three hundred eleven thousand, five hundred twenty-five".

Divisors: 1 5 25 61 73 305 365 937 1525 1825 4453 4685 22265 23425 57157 68401 111325 285785 342005 1428925 1710025 4172461 20862305 104311525