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20212313003 = 27772968639
BaseRepresentation
bin10010110100101111…
…110110101110101011
31221011122000212221022
4102310233312232223
5312343323004003
613141352003055
71313610553151
oct226457665653
957148025838
1020212313003
118632361a13
123b0109048b
131ba168352c
14d9a5913d1
157d4708738
hex4b4bf6bab

20212313003 has 4 divisors (see below), whose sum is σ = 20285281920. Its totient is φ = 20139344088.

The previous prime is 20212312951. The next prime is 20212313029. The reversal of 20212313003 is 30031321202.

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

It is a cyclic number.

It is not a de Polignac number, because 20212313003 - 220 = 20211264427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212313053) 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, 36484043 + ... + 36484596.

It is an arithmetic number, because the mean of its divisors is an integer number (5071320480).

Almost surely, 220212313003 is an apocalyptic number.

20212313003 is a deficient number, since it is larger than the sum of its proper divisors (72968917).

20212313003 is an equidigital number, since it uses as much as digits as its factorization.

20212313003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72968916.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20212313003 its reverse (30031321202), we get a palindrome (50243634205).

The spelling of 20212313003 in words is "twenty billion, two hundred twelve million, three hundred thirteen thousand, three".

Divisors: 1 277 72968639 20212313003