Search a number
-
+
20210412331 = 47481789269
BaseRepresentation
bin10010110100101000…
…100110101100101011
31221011111110022201001
4102310220212230223
5312342331143311
613141243135431
71313555445634
oct226450465453
957144408631
1020210412331
118631283a0a
123b00514577
131ba1169385
14d9a21888b
157d44804c1
hex4b4a26b2b

20210412331 has 8 divisors (see below), whose sum is σ = 20644937280. Its totient is φ = 19776075648.

The previous prime is 20210412319. The next prime is 20210412349. The reversal of 20210412331 is 13321401202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20210412331 is a prime.

It is a super-2 number, since 2×202104123312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210412299 and 20210412308.

It is not an unprimeable number, because it can be changed into a prime (20210412361) 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 7 ways as a sum of consecutive naturals, for example, 181765 + ... + 271033.

It is an arithmetic number, because the mean of its divisors is an integer number (2580617160).

Almost surely, 220210412331 is an apocalyptic number.

20210412331 is a deficient number, since it is larger than the sum of its proper divisors (434524949).

20210412331 is an equidigital number, since it uses as much as digits as its factorization.

20210412331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94133.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20210412331 its reverse (13321401202), we get a palindrome (33531813533).

The spelling of 20210412331 in words is "twenty billion, two hundred ten million, four hundred twelve thousand, three hundred thirty-one".

Divisors: 1 47 4817 89269 226399 4195643 430008773 20210412331