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130213722 = 2374329209
BaseRepresentation
bin1111100001011…
…10011101011010
3100002000112122110
413300232131122
5231313314342
620530533150
73140540562
oct760563532
9302015573
10130213722
1167558551
12377371b6
1320c91b52
1413417da2
15b671c9c
hex7c2e75a

130213722 has 16 divisors (see below), whose sum is σ = 260786880. Its totient is φ = 43344672.

The previous prime is 130213717. The next prime is 130213747. The reversal of 130213722 is 227312031.

It is a super-2 number, since 2×1302137222 = 33911226794186568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10147 + ... + 19062.

It is an arithmetic number, because the mean of its divisors is an integer number (16299180).

Almost surely, 2130213722 is an apocalyptic number.

130213722 is an abundant number, since it is smaller than the sum of its proper divisors (130573158).

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

130213722 is a wasteful number, since it uses less digits than its factorization.

130213722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29957.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 130213722 is about 11411.1227317911. The cubic root of 130213722 is about 506.8571581926.

Adding to 130213722 its reverse (227312031), we get a palindrome (357525753).

The spelling of 130213722 in words is "one hundred thirty million, two hundred thirteen thousand, seven hundred twenty-two".

Divisors: 1 2 3 6 743 1486 2229 4458 29209 58418 87627 175254 21702287 43404574 65106861 130213722