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115255420 = 22574012053
BaseRepresentation
bin1101101111010…
…10100001111100
322000212120201021
412313222201330
5214001133140
615234153524
72566440430
oct667524174
9260776637
10115255420
115a071115
12327228a4
131ab55497
14114429c0
15a1b9b4a
hex6dea87c

115255420 has 48 divisors (see below), whose sum is σ = 277437888. Its totient is φ = 39398400.

The previous prime is 115255417. The next prime is 115255423. The reversal of 115255420 is 24552511.

It is an interprime number because it is at equal distance from previous prime (115255417) and next prime (115255423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115255423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55114 + ... + 57166.

It is an arithmetic number, because the mean of its divisors is an integer number (5779956).

Almost surely, 2115255420 is an apocalyptic number.

115255420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115255420 is an abundant number, since it is smaller than the sum of its proper divisors (162182468).

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

115255420 is a wasteful number, since it uses less digits than its factorization.

115255420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2468 counting only the distinct ones).

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

The square root of 115255420 is about 10735.7077083907. The cubic root of 115255420 is about 486.6541739042.

The spelling of 115255420 in words is "one hundred fifteen million, two hundred fifty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 401 802 1604 2005 2053 2807 4010 4106 5614 8020 8212 10265 11228 14035 14371 20530 28070 28742 41060 56140 57484 71855 143710 287420 823253 1646506 3293012 4116265 5762771 8232530 11525542 16465060 23051084 28813855 57627710 115255420