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20200333231 = 132181660379
BaseRepresentation
bin10010110100000010…
…001001111110101111
31221010210111020210001
4102310002021332233
5312332241130411
613140243125131
71313403666541
oct226402117657
957123436701
1020200333231
11862661a381
123ab90737a7
131b9c04a800
14d98b53691
157d363ddc1
hex4b4089faf

20200333231 has 12 divisors (see below), whose sum is σ = 21994616280. Its totient is φ = 18543414240.

The previous prime is 20200333201. The next prime is 20200333271. The reversal of 20200333231 is 13233300202.

It is a happy number.

It is not a de Polignac number, because 20200333231 - 223 = 20191944623 is a prime.

It is a super-2 number, since 2×202003332312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20200333199 and 20200333208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200333201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 299601 + ... + 360778.

It is an arithmetic number, because the mean of its divisors is an integer number (1832884690).

Almost surely, 220200333231 is an apocalyptic number.

20200333231 is a deficient number, since it is larger than the sum of its proper divisors (1794283049).

20200333231 is a wasteful number, since it uses less digits than its factorization.

20200333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660586 (or 660573 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20200333231 its reverse (13233300202), we get a palindrome (33433633433).

The spelling of 20200333231 in words is "twenty billion, two hundred million, three hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 13 169 181 2353 30589 660379 8584927 111604051 119528599 1553871787 20200333231