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115552420 = 2255777621
BaseRepresentation
bin1101110001100…
…11000010100100
322001102200010021
412320303002210
5214040134140
615244404524
72602115344
oct670630244
9261380107
10115552420
115a254275
1232846744
131ac2a719
14114bcd24
15a227b4a
hex6e330a4

115552420 has 12 divisors (see below), whose sum is σ = 242660124. Its totient is φ = 46220960.

The previous prime is 115552399. The next prime is 115552427. The reversal of 115552420 is 24255511.

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 89908324 = 5064^2 + 9482^2 .

It is not an unprimeable number, because it can be changed into a prime (115552427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888791 + ... + 2888830.

It is an arithmetic number, because the mean of its divisors is an integer number (20221677).

Almost surely, 2115552420 is an apocalyptic number.

115552420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115552420 is an abundant number, since it is smaller than the sum of its proper divisors (127107704).

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

115552420 is a wasteful number, since it uses less digits than its factorization.

115552420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5777630 (or 5777628 counting only the distinct ones).

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

The square root of 115552420 is about 10749.5311525666. The cubic root of 115552420 is about 487.0718326889.

The spelling of 115552420 in words is "one hundred fifteen million, five hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 5777621 11555242 23110484 28888105 57776210 115552420