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130312222 = 21913924671
BaseRepresentation
bin1111100010001…
…10100000011110
3100002012112202121
413301012200132
5231324442342
620533013154
73141431005
oct761064036
9302175677
10130312222
1167615557
12377841ba
1320cc7931
1413441c3c
15b691067
hex7c4681e

130312222 has 16 divisors (see below), whose sum is σ = 207244800. Its totient is φ = 61280280.

The previous prime is 130312219. The next prime is 130312223. The reversal of 130312222 is 222213031.

130312222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 130312196 and 130312205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130312223) 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 7 ways as a sum of consecutive naturals, for example, 7054 + ... + 17617.

It is an arithmetic number, because the mean of its divisors is an integer number (12952800).

Almost surely, 2130312222 is an apocalyptic number.

130312222 is a deficient number, since it is larger than the sum of its proper divisors (76932578).

130312222 is a wasteful number, since it uses less digits than its factorization.

130312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24831.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130312222 is about 11415.4378803443. The cubic root of 130312222 is about 506.9849297923.

Adding to 130312222 its reverse (222213031), we get a palindrome (352525253).

The spelling of 130312222 in words is "one hundred thirty million, three hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 19 38 139 278 2641 5282 24671 49342 468749 937498 3429269 6858538 65156111 130312222