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103221301213 = 531947571721
BaseRepresentation
bin110000000100001111…
…0000000111111011101
3100212102200002101210001
41200020132000333131
53142344123114323
6115230314414301
710312630404142
oct1401036007735
9325380071701
10103221301213
113a859808408
1218008731391
13996ccc8a34
144dd2bd23c9
152a41e443ad
hex1808780fdd

103221301213 has 4 divisors (see below), whose sum is σ = 105168872988. Its totient is φ = 101273729440.

The previous prime is 103221301201. The next prime is 103221301237. The reversal of 103221301213 is 312103122301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89207950329 + 14013350884 = 298677^2 + 118378^2 .

It is a cyclic number.

It is not a de Polignac number, because 103221301213 - 29 = 103221300701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103221301283) 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 3 ways as a sum of consecutive naturals, for example, 973785808 + ... + 973785913.

It is an arithmetic number, because the mean of its divisors is an integer number (26292218247).

Almost surely, 2103221301213 is an apocalyptic number.

It is an amenable number.

103221301213 is a deficient number, since it is larger than the sum of its proper divisors (1947571775).

103221301213 is an equidigital number, since it uses as much as digits as its factorization.

103221301213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947571774.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103221301213 its reverse (312103122301), we get a palindrome (415324423514).

The spelling of 103221301213 in words is "one hundred three billion, two hundred twenty-one million, three hundred one thousand, two hundred thirteen".

Divisors: 1 53 1947571721 103221301213