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103220302021 = 157884974297
BaseRepresentation
bin110000000100001101…
…0001101000011000101
3100212102121012122010221
41200020122031003011
53142343344131041
6115230241144341
710312616043064
oct1401032150305
9325377178127
10103220302021
113a859195731
121800832b0b1
13996ca38cb5
144dd2a121db
152a41ce82d1
hex180868d0c5

103220302021 has 8 divisors (see below), whose sum is σ = 103890893400. Its totient is φ = 102549877248.

The previous prime is 103220302019. The next prime is 103220302067. The reversal of 103220302021 is 120203022301.

It can be written as a sum of positive squares in 4 ways, for example, as 2198672100 + 101021629921 = 46890^2 + 317839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103220302021 - 21 = 103220302019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103220301986 and 103220302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103220302091) 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, 1352145 + ... + 1426441.

It is an arithmetic number, because the mean of its divisors is an integer number (12986361675).

Almost surely, 2103220302021 is an apocalyptic number.

It is an amenable number.

103220302021 is a deficient number, since it is larger than the sum of its proper divisors (670591379).

103220302021 is an equidigital number, since it uses as much as digits as its factorization.

103220302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83303.

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

Adding to 103220302021 its reverse (120203022301), we get a palindrome (223423324322).

The spelling of 103220302021 in words is "one hundred three billion, two hundred twenty million, three hundred two thousand, twenty-one".

Divisors: 1 157 8849 74297 1389293 11664629 657454153 103220302021