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130222015 = 5711297317
BaseRepresentation
bin1111100001100…
…00011110111111
3100002000222000121
413300300132333
5231314101030
620531035411
73140604010
oct760603677
9302028017
10130222015
1167563800
123773bb67
1320c95861
141341b007
15b67447a
hex7c307bf

130222015 has 48 divisors (see below), whose sum is σ = 198950976. Its totient is φ = 80087040.

The previous prime is 130222013. The next prime is 130222031. The reversal of 130222015 is 510222031.

It is not a de Polignac number, because 130222015 - 21 = 130222013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130222015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130222013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410637 + ... + 410953.

It is an arithmetic number, because the mean of its divisors is an integer number (4144812).

Almost surely, 2130222015 is an apocalyptic number.

130222015 is a deficient number, since it is larger than the sum of its proper divisors (68728961).

130222015 is a wasteful number, since it uses less digits than its factorization.

130222015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130222015 is about 11411.4860995402. The cubic root of 130222015 is about 506.8679181369.

Adding to 130222015 its sum of digits (16), we get a palindrome (130222031).

Adding to 130222015 its reverse (510222031), we get a palindrome (640444046).

The spelling of 130222015 in words is "one hundred thirty million, two hundred twenty-two thousand, fifteen".

Divisors: 1 5 7 11 35 55 77 97 121 317 385 485 605 679 847 1067 1585 2219 3395 3487 4235 5335 7469 11095 11737 17435 24409 30749 37345 38357 58685 82159 122045 153745 191785 215243 268499 338239 410795 1076215 1342495 1691195 2367673 3720629 11838365 18603145 26044403 130222015