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242132525 = 5231730553
BaseRepresentation
bin11100110111010…
…10011000101101
3121212121121101022
432123222120231
5443441220100
640005423525
76000043505
oct1633523055
9555547338
10242132525
1111474a828
126910aba5
133b2196ab
142422ca05
15163cce85
hexe6ea62d

242132525 has 12 divisors (see below), whose sum is σ = 301201332. Its totient is φ = 193088640.

The previous prime is 242132521. The next prime is 242132543. The reversal of 242132525 is 525231242.

It can be written as a sum of positive squares in 6 ways, for example, as 73496329 + 168636196 = 8573^2 + 12986^2 .

It is not a de Polignac number, because 242132525 - 22 = 242132521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242132494 and 242132503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242132521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7352 + ... + 23201.

It is an arithmetic number, because the mean of its divisors is an integer number (25100111).

Almost surely, 2242132525 is an apocalyptic number.

242132525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242132525 is a deficient number, since it is larger than the sum of its proper divisors (59068807).

242132525 is a wasteful number, since it uses less digits than its factorization.

242132525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30880 (or 30875 counting only the distinct ones).

The product of its digits is 4800, while the sum is 26.

The square root of 242132525 is about 15560.6081179368. The cubic root of 242132525 is about 623.2817015835.

Adding to 242132525 its reverse (525231242), we get a palindrome (767363767).

The spelling of 242132525 in words is "two hundred forty-two million, one hundred thirty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 317 1585 7925 30553 152765 763825 9685301 48426505 242132525