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130122211 = 612133151
BaseRepresentation
bin1111100000110…
…00000111100011
3100001211220010011
413300120013203
5231302402321
620524545351
73140010022
oct760300743
9301756104
10130122211
11674a581a
12376b2257
1320c5c2bb
14133d28b9
15b654ae1
hex7c181e3

130122211 has 4 divisors (see below), whose sum is σ = 132255424. Its totient is φ = 127989000.

The previous prime is 130122193. The next prime is 130122227. The reversal of 130122211 is 112221031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112221031 = 138632387.

It is a cyclic number.

It is not a de Polignac number, because 130122211 - 29 = 130121699 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 130122191 and 130122200.

It is not an unprimeable number, because it can be changed into a prime (130122011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066515 + ... + 1066636.

It is an arithmetic number, because the mean of its divisors is an integer number (33063856).

Almost surely, 2130122211 is an apocalyptic number.

130122211 is a deficient number, since it is larger than the sum of its proper divisors (2133213).

130122211 is an equidigital number, since it uses as much as digits as its factorization.

130122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133212.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 130122211 is about 11407.1122989125. The cubic root of 130122211 is about 506.7383947870.

Adding to 130122211 its reverse (112221031), we get a palindrome (242343242).

The spelling of 130122211 in words is "one hundred thirty million, one hundred twenty-two thousand, two hundred eleven".

Divisors: 1 61 2133151 130122211