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115803030 = 2357551443
BaseRepresentation
bin1101110011100…
…00001110010110
322001220101220010
412321300032112
5214121144110
615254021050
72604211110
oct671601626
9261811803
10115803030
115a405592
1232947786
131acb7805
14115463b0
15a277020
hex6e70396

115803030 has 32 divisors (see below), whose sum is σ = 317631744. Its totient is φ = 26469216.

The previous prime is 115802993. The next prime is 115803041. The reversal of 115803030 is 30308511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 115802988 and 115803006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275512 + ... + 275931.

It is an arithmetic number, because the mean of its divisors is an integer number (9925992).

Almost surely, 2115803030 is an apocalyptic number.

115803030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115803030 is an abundant number, since it is smaller than the sum of its proper divisors (201828714).

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

115803030 is a wasteful number, since it uses less digits than its factorization.

115803030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551460.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 115803030 is about 10761.1816265687. The cubic root of 115803030 is about 487.4236987749.

The spelling of 115803030 in words is "one hundred fifteen million, eight hundred three thousand, thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 551443 1102886 1654329 2757215 3308658 3860101 5514430 7720202 8271645 11580303 16543290 19300505 23160606 38601010 57901515 115803030