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20301551245 = 56536217933
BaseRepresentation
bin10010111010000100…
…010001011010001101
31221101211221122210101
4102322010101122031
5313034144114440
613154300411101
71316043224023
oct227204213215
957354848711
1020301551245
118678772a28
123b26b46a91
131bb6cc9821
14da8380713
157dc48469a
hex4ba11168d

20301551245 has 8 divisors (see below), whose sum is σ = 24399173016. Its totient is φ = 16216366656.

The previous prime is 20301551233. The next prime is 20301551269. The reversal of 20301551245 is 54215510302.

It can be written as a sum of positive squares in 4 ways, for example, as 952463044 + 19349088201 = 30862^2 + 139101^2 .

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 20301551245 - 217 = 20301420173 is a prime.

It is a super-2 number, since 2×203015512452 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3105702 + ... + 3112231.

It is an arithmetic number, because the mean of its divisors is an integer number (3049896627).

Almost surely, 220301551245 is an apocalyptic number.

It is an amenable number.

20301551245 is a deficient number, since it is larger than the sum of its proper divisors (4097621771).

20301551245 is an equidigital number, since it uses as much as digits as its factorization.

20301551245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218591.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 20301551245 in words is "twenty billion, three hundred one million, five hundred fifty-one thousand, two hundred forty-five".

Divisors: 1 5 653 3265 6217933 31089665 4060310249 20301551245