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20204140401 = 322397604543
BaseRepresentation
bin10010110100010000…
…101011011101110001
31221011001122200020100
4102310100223131301
5312334224443101
613140500503013
71313451234264
oct226420533561
957131580210
1020204140401
11862878a7a5
123aba3aaa69
131b9ca81683
14d99464cdb
157d3b41e86
hex4b442b771

20204140401 has 12 divisors (see below), whose sum is σ = 30452617728. Its totient is φ = 12883799544.

The previous prime is 20204140343. The next prime is 20204140469. The reversal of 20204140401 is 10404140202.

20204140401 is a `hidden beast` number, since 20 + 204 + 1 + 40 + 401 = 666.

It is not a de Polignac number, because 20204140401 - 26 = 20204140337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20204148401) 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, 48802065 + ... + 48802478.

It is an arithmetic number, because the mean of its divisors is an integer number (2537718144).

Almost surely, 220204140401 is an apocalyptic number.

It is an amenable number.

20204140401 is a deficient number, since it is larger than the sum of its proper divisors (10248477327).

20204140401 is a wasteful number, since it uses less digits than its factorization.

20204140401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97604572 (or 97604569 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 20204140401 its reverse (10404140202), we get a palindrome (30608280603).

The spelling of 20204140401 in words is "twenty billion, two hundred four million, one hundred forty thousand, four hundred one".

Divisors: 1 3 9 23 69 207 97604543 292813629 878440887 2244904489 6734713467 20204140401