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BaseRepresentation
bin11111110010101110
320121122001
4133302232
513131342
62442514
71051441
oct376256
9217561
10130222
1189924
126343a
1347371
1435658
15288b7
hex1fcae

130222 has 4 divisors (see below), whose sum is σ = 195336. Its totient is φ = 65110.

The previous prime is 130211. The next prime is 130223. The reversal of 130222 is 222031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222031 = 239929.

130222 is a modest number, since divided by 222 gives 130 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 130199 and 130208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32554 + ... + 32557.

It is an arithmetic number, because the mean of its divisors is an integer number (48834).

2130222 is an apocalyptic number.

130222 is a deficient number, since it is larger than the sum of its proper divisors (65114).

130222 is an equidigital number, since it uses as much as digits as its factorization.

130222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65113.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 130222 is about 360.8628548355. The cubic root of 130222 is about 50.6867898675.

Adding to 130222 its reverse (222031), we get a palindrome (352253).

Subtracting 130222 from its reverse (222031), we obtain a square (91809 = 3032).

The spelling of 130222 in words is "one hundred thirty thousand, two hundred twenty-two".

Divisors: 1 2 65111 130222