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20301223312 = 241268826457
BaseRepresentation
bin10010111010000011…
…000001010110010000
31221101211022222221201
4102322003001112100
5313034103121222
613154245400544
71316040356656
oct227203012620
957354288851
1020301223312
118678569607
123b26a09154
131bb6c13496
14da82d6dd6
157dc41c427
hex4ba0c1590

20301223312 has 10 divisors (see below), whose sum is σ = 39333620198. Its totient is φ = 10150611648.

The previous prime is 20301223223. The next prime is 20301223351. The reversal of 20301223312 is 21332210302.

It can be written as a sum of positive squares in only one way, i.e., 13571318016 + 6729905296 = 116496^2 + 82036^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20301223312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634413213 + ... + 634413244.

Almost surely, 220301223312 is an apocalyptic number.

It is an amenable number.

20301223312 is a deficient number, since it is larger than the sum of its proper divisors (19032396886).

20301223312 is a wasteful number, since it uses less digits than its factorization.

20301223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268826465 (or 1268826459 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20301223312 its reverse (21332210302), we get a palindrome (41633433614).

The spelling of 20301223312 in words is "twenty billion, three hundred one million, two hundred twenty-three thousand, three hundred twelve".

Divisors: 1 2 4 8 16 1268826457 2537652914 5075305828 10150611656 20301223312