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115240325 = 5214930937
BaseRepresentation
bin1101101111001…
…10110110000101
322000211211000012
412313212312011
5214000142300
615234000005
72566345424
oct667466605
9260754005
10115240325
115a060842
1232716005
131ab4b655
141143b2bb
15a1b5435
hex6de6d85

115240325 has 12 divisors (see below), whose sum is σ = 143861700. Its totient is φ = 91570560.

The previous prime is 115240309. The next prime is 115240369. The reversal of 115240325 is 523042511.

It can be written as a sum of positive squares in 6 ways, for example, as 34492129 + 80748196 = 5873^2 + 8986^2 .

It is not a de Polignac number, because 115240325 - 24 = 115240309 is a prime.

It is a super-2 number, since 2×1152403252 = 26560665012211250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 115240325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11744 + ... + 19193.

It is an arithmetic number, because the mean of its divisors is an integer number (11988475).

Almost surely, 2115240325 is an apocalyptic number.

It is an amenable number.

115240325 is a deficient number, since it is larger than the sum of its proper divisors (28621375).

115240325 is a wasteful number, since it uses less digits than its factorization.

115240325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31096 (or 31091 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 115240325 is about 10735.0046576608. The cubic root of 115240325 is about 486.6329272809.

Adding to 115240325 its reverse (523042511), we get a palindrome (638282836).

The spelling of 115240325 in words is "one hundred fifteen million, two hundred forty thousand, three hundred twenty-five".

Divisors: 1 5 25 149 745 3725 30937 154685 773425 4609613 23048065 115240325