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115031130 = 23519201809
BaseRepresentation
bin1101101101100…
…11110001011010
322000110012001020
412312303301122
5213421444010
615225303310
72564514504
oct666636132
9260405036
10115031130
1159a28655
1232634b36
131aaa7376
14113c4d74
15a173470
hex6db3c5a

115031130 has 32 divisors (see below), whose sum is σ = 290606400. Its totient is φ = 29060352.

The previous prime is 115031123. The next prime is 115031153. The reversal of 115031130 is 31130511.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 100335 + ... + 101474.

It is an arithmetic number, because the mean of its divisors is an integer number (9081450).

Almost surely, 2115031130 is an apocalyptic number.

115031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115031130 is an abundant number, since it is smaller than the sum of its proper divisors (175575270).

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

115031130 is a wasteful number, since it uses less digits than its factorization.

115031130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201838.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 115031130 is about 10725.2566402860. The cubic root of 115031130 is about 486.3382884118.

Adding to 115031130 its reverse (31130511), we get a palindrome (146161641).

The spelling of 115031130 in words is "one hundred fifteen million, thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 201809 403618 605427 1009045 1210854 2018090 3027135 3834371 6054270 7668742 11503113 19171855 23006226 38343710 57515565 115031130