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20869230373 is a prime number
BaseRepresentation
bin10011011011111001…
…110010111100100101
31222212102010202011021
4103123321302330211
5320220010332443
613330500011141
71336105350145
oct233371627445
958772122137
1020869230373
11893a155732
124065090ab1
131c777b9c34
14101d912925
1582221a9ed
hex4dbe72f25

20869230373 has 2 divisors, whose sum is σ = 20869230374. Its totient is φ = 20869230372.

The previous prime is 20869230331. The next prime is 20869230383. The reversal of 20869230373 is 37303296802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14142442084 + 6726788289 = 118922^2 + 82017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20869230373 - 225 = 20835675941 is a prime.

It is a super-2 number, since 2×208692303732 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20869230383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10434615186 + 10434615187.

It is an arithmetic number, because the mean of its divisors is an integer number (10434615187).

Almost surely, 220869230373 is an apocalyptic number.

It is an amenable number.

20869230373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20869230373 is an equidigital number, since it uses as much as digits as its factorization.

20869230373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 20869230373 in words is "twenty billion, eight hundred sixty-nine million, two hundred thirty thousand, three hundred seventy-three".