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222130013 = 731732859
BaseRepresentation
bin11010011110101…
…10111101011101
3120110222101002112
431033112331131
5423331130023
634013003405
75335034240
oct1517267535
9513871075
10222130013
11104428626
1262483565
13370350a1
1421703257
151477b478
hexd3d6f5d

222130013 has 4 divisors (see below), whose sum is σ = 253862880. Its totient is φ = 190397148.

The previous prime is 222130009. The next prime is 222130031. The reversal of 222130013 is 310031222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222130013 - 22 = 222130009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222130003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15866423 + ... + 15866436.

It is an arithmetic number, because the mean of its divisors is an integer number (63465720).

Almost surely, 2222130013 is an apocalyptic number.

It is an amenable number.

222130013 is a deficient number, since it is larger than the sum of its proper divisors (31732867).

222130013 is an equidigital number, since it uses as much as digits as its factorization.

222130013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31732866.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 222130013 is about 14904.0267377645. The cubic root of 222130013 is about 605.6230750488.

Adding to 222130013 its reverse (310031222), we get a palindrome (532161235).

The spelling of 222130013 in words is "two hundred twenty-two million, one hundred thirty thousand, thirteen".

Divisors: 1 7 31732859 222130013