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130122312 = 2335421763
BaseRepresentation
bin1111100000110…
…00001001001000
3100001211220020220
413300120021020
5231302403222
620524550040
73140010225
oct760301110
9301756226
10130122312
11674a5901
12376b2320
1320c5c368
14133d294c
15b654b5c
hex7c18248

130122312 has 16 divisors (see below), whose sum is σ = 325305840. Its totient is φ = 43374096.

The previous prime is 130122263. The next prime is 130122329. The reversal of 130122312 is 213221031.

It is a junction number, because it is equal to n+sod(n) for n = 130122291 and 130122300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2710858 + ... + 2710905.

It is an arithmetic number, because the mean of its divisors is an integer number (20331615).

Almost surely, 2130122312 is an apocalyptic number.

130122312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130122312 is an abundant number, since it is smaller than the sum of its proper divisors (195183528).

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

130122312 is a wasteful number, since it uses less digits than its factorization.

130122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5421772 (or 5421768 counting only the distinct ones).

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

The square root of 130122312 is about 11407.1167259742. The cubic root of 130122312 is about 506.7385258959.

Adding to 130122312 its reverse (213221031), we get a palindrome (343343343).

The spelling of 130122312 in words is "one hundred thirty million, one hundred twenty-two thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 5421763 10843526 16265289 21687052 32530578 43374104 65061156 130122312