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130222222 = 2138775711
BaseRepresentation
bin1111100001100…
…00100010001110
3100002000222022021
413300300202032
5231314102342
620531040354
73140604424
oct760604216
9302028267
10130222222
1167563979
12377400ba
1320c95990
141341b114
15b674567
hex7c3088e

130222222 has 16 divisors (see below), whose sum is σ = 210635712. Its totient is φ = 60023520.

The previous prime is 130222187. The next prime is 130222223. The reversal of 130222222 is 222222031.

130222222 is a modest number, since divided by 22222 gives 1302 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 130222196 and 130222205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19947 + ... + 25657.

It is an arithmetic number, because the mean of its divisors is an integer number (13164732).

Almost surely, 2130222222 is an apocalyptic number.

130222222 is a deficient number, since it is larger than the sum of its proper divisors (80413490).

130222222 is a wasteful number, since it uses less digits than its factorization.

130222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6603.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 130222222 is about 11411.4951693457. The cubic root of 130222222 is about 506.8681867080.

Adding to 130222222 its reverse (222222031), we get a palindrome (352444253).

The spelling of 130222222 in words is "one hundred thirty million, two hundred twenty-two thousand, two hundred twenty-two".

Divisors: 1 2 13 26 877 1754 5711 11401 11422 22802 74243 148486 5008547 10017094 65111111 130222222