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20202442211 = 721669247031
BaseRepresentation
bin10010110100001010…
…001100110111100011
31221010221110101202102
4102310022030313203
5312333311122321
613140400241015
71313430632300
oct226412146743
957127411672
1020202442211
11862782a936
123ab991016b
131b9c608723
14d991420a7
157d3908c0b
hex4b428cde3

20202442211 has 12 divisors (see below), whose sum is σ = 23514976080. Its totient is φ = 17305933680.

The previous prime is 20202442207. The next prime is 20202442217. The reversal of 20202442211 is 11224420202.

It is not a de Polignac number, because 20202442211 - 22 = 20202442207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202442217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41735 + ... + 205296.

It is an arithmetic number, because the mean of its divisors is an integer number (1959581340).

Almost surely, 220202442211 is an apocalyptic number.

20202442211 is a deficient number, since it is larger than the sum of its proper divisors (3312533869).

20202442211 is a wasteful number, since it uses less digits than its factorization.

20202442211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248714 (or 248707 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20202442211 its reverse (11224420202), we get a palindrome (31426862413).

The spelling of 20202442211 in words is "twenty billion, two hundred two million, four hundred forty-two thousand, two hundred eleven".

Divisors: 1 7 49 1669 11683 81781 247031 1729217 12104519 412294739 2886063173 20202442211