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20212310299 = 73276880963
BaseRepresentation
bin10010110100101111…
…110110000100011011
31221011122000202020011
4102310233312010123
5312343322412144
613141351542351
71313610542236
oct226457660433
957148022204
1020212310299
11863235a985
123b0108a9b7
131ba168222c
14d9a59041d
157d4707a34
hex4b4bf611b

20212310299 has 4 divisors (see below), whose sum is σ = 20489191336. Its totient is φ = 19935429264.

The previous prime is 20212310297. The next prime is 20212310311. The reversal of 20212310299 is 99201321202.

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 20212310299 - 21 = 20212310297 is a prime.

It is a super-2 number, since 2×202123102992 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20212310299.

It is not an unprimeable number, because it can be changed into a prime (20212310297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138440409 + ... + 138440554.

It is an arithmetic number, because the mean of its divisors is an integer number (5122297834).

Almost surely, 220212310299 is an apocalyptic number.

20212310299 is a deficient number, since it is larger than the sum of its proper divisors (276881037).

20212310299 is an equidigital number, since it uses as much as digits as its factorization.

20212310299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276881036.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 20212310299 in words is "twenty billion, two hundred twelve million, three hundred ten thousand, two hundred ninety-nine".

Divisors: 1 73 276880963 20212310299