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115552240 = 2452949807
BaseRepresentation
bin1101110001100…
…10111111110000
322001102122212121
412320302333300
5214040132430
615244404024
72602114666
oct670627760
9261378777
10115552240
115a254121
1232846614
131ac2a60b
14114bcc36
15a227a7a
hex6e32ff0

115552240 has 40 divisors (see below), whose sum is σ = 277928640. Its totient is φ = 44626176.

The previous prime is 115552237. The next prime is 115552271. The reversal of 115552240 is 42255511.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22584 + ... + 27223.

It is an arithmetic number, because the mean of its divisors is an integer number (6948216).

Almost surely, 2115552240 is an apocalyptic number.

115552240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115552240 is an abundant number, since it is smaller than the sum of its proper divisors (162376400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115552240 is a wasteful number, since it uses less digits than its factorization.

115552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49849 (or 49843 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 115552240 is about 10749.5227801052. The cubic root of 115552240 is about 487.0715797792.

The spelling of 115552240 in words is "one hundred fifteen million, five hundred fifty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 29 40 58 80 116 145 232 290 464 580 1160 2320 49807 99614 199228 249035 398456 498070 796912 996140 1444403 1992280 2888806 3984560 5777612 7222015 11555224 14444030 23110448 28888060 57776120 115552240