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20223213293 = 195918040333
BaseRepresentation
bin10010110101011001…
…011011111011101101
31221012101112200022202
4102311121123323231
5312404120311133
613142421351245
71314102322343
oct226531337355
957171480282
1020223213293
118638527518
123b04868525
131ba39cbaca
14d9bbcb993
157d565d2e8
hex4b565beed

20223213293 has 8 divisors (see below), whose sum is σ = 21648400800. Its totient is φ = 18834106608.

The previous prime is 20223213281. The next prime is 20223213299. The reversal of 20223213293 is 39231232202.

It is a happy number.

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 20223213293 - 218 = 20222951149 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 (20223213299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9019046 + ... + 9021287.

It is an arithmetic number, because the mean of its divisors is an integer number (2706050100).

Almost surely, 220223213293 is an apocalyptic number.

It is an amenable number.

20223213293 is a deficient number, since it is larger than the sum of its proper divisors (1425187507).

20223213293 is a wasteful number, since it uses less digits than its factorization.

20223213293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18040411.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 20223213293 its reverse (39231232202), we get a palindrome (59454445495).

The spelling of 20223213293 in words is "twenty billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred ninety-three".

Divisors: 1 19 59 1121 18040333 342766327 1064379647 20223213293