Search a number
-
+
20210211133031 = 761145491825379
BaseRepresentation
bin1001001100001100011100…
…11101001001011001100111
32122120002002100210111100102
410212012032131021121213
510122111003022224111
6110552235352134315
74154065605124013
oct446061635113147
978502070714312
1020210211133031
11649211433a657
122324a5a99739b
13b37a78c74b5a
144dc272541543
15250aa99c113b
hex12618e749667

20210211133031 has 8 divisors (see below), whose sum is σ = 20238170598000. Its totient is φ = 20182255349440.

The previous prime is 20210211133019. The next prime is 20210211133061. The reversal of 20210211133031 is 13033111201202.

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 not a de Polignac number, because 20210211133031 - 214 = 20210211116647 is a prime.

It is a super-2 number, since 2×202102111330312 (a number of 27 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 = 20210211132994 and 20210211133012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210211133061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10159100 + ... + 11984478.

It is an arithmetic number, because the mean of its divisors is an integer number (2529771324750).

Almost surely, 220210211133031 is an apocalyptic number.

20210211133031 is a deficient number, since it is larger than the sum of its proper divisors (27959464969).

20210211133031 is a wasteful number, since it uses less digits than its factorization.

20210211133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840689.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20210211133031 its reverse (13033111201202), we get a palindrome (33243322334233).

The spelling of 20210211133031 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred thirty-three thousand, thirty-one".

Divisors: 1 761 14549 1825379 11071789 1389113419 26557439071 20210211133031