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130312122 = 23711492053
BaseRepresentation
bin1111100010001…
…10011110111010
3100002012112121220
413301012132322
5231324441442
620533012510
73141430503
oct761063672
9302175556
10130312122
1167615476
1237784136
1320cc7885
1413441baa
15b690eec
hex7c467ba

130312122 has 32 divisors (see below), whose sum is σ = 266198400. Its totient is φ = 42517440.

The previous prime is 130312111. The next prime is 130312129. The reversal of 130312122 is 221213031.

130312122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (130312129) 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, 62448 + ... + 64500.

It is an arithmetic number, because the mean of its divisors is an integer number (8318700).

Almost surely, 2130312122 is an apocalyptic number.

130312122 is an abundant number, since it is smaller than the sum of its proper divisors (135886278).

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

130312122 is a wasteful number, since it uses less digits than its factorization.

130312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 130312122 is about 11415.4335003100. The cubic root of 130312122 is about 506.9848001076.

Adding to 130312122 its reverse (221213031), we get a palindrome (351525153).

Subtracting 130312122 from its reverse (221213031), we obtain a palindrome (90900909).

The spelling of 130312122 in words is "one hundred thirty million, three hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 71 142 149 213 298 426 447 894 2053 4106 6159 10579 12318 21158 31737 63474 145763 291526 305897 437289 611794 874578 917691 1835382 21718687 43437374 65156061 130312122