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13220303023 = 61921357517
BaseRepresentation
bin11000100111111110…
…11101000010101111
31021010100022222101201
430103333131002233
5204033344144043
610023500550331
7645416502334
oct142377350257
937110288351
1013220303023
115674575374
12268b5523a7
131328c17315
148d5b1498b
1552596bc4d
hex313fdd0af

13220303023 has 4 divisors (see below), whose sum is σ = 13241661160. Its totient is φ = 13198944888.

The previous prime is 13220303003. The next prime is 13220303029. The reversal of 13220303023 is 32030302231.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13220303023 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 (13220303029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10678140 + ... + 10679377.

It is an arithmetic number, because the mean of its divisors is an integer number (3310415290).

Almost surely, 213220303023 is an apocalyptic number.

13220303023 is a deficient number, since it is larger than the sum of its proper divisors (21358137).

13220303023 is an equidigital number, since it uses as much as digits as its factorization.

13220303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21358136.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 13220303023 its reverse (32030302231), we get a palindrome (45250605254).

The spelling of 13220303023 in words is "thirteen billion, two hundred twenty million, three hundred three thousand, twenty-three".

Divisors: 1 619 21357517 13220303023