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202003021231 = 11191402123911
BaseRepresentation
bin1011110000100001010…
…0010111110110101111
3201022101221022201001221
42330020110113312233
511302200233134411
6232444321444211
720410552231024
oct2741024276657
9638357281057
10202003021231
117873a491750
12331964a0667
13160832b373b
149ac412554b
1553c4232071
hex2f08517daf

202003021231 has 16 divisors (see below), whose sum is σ = 221585043456. Its totient is φ = 182624580000.

The previous prime is 202003021229. The next prime is 202003021273. The reversal of 202003021231 is 132120300202.

It is a cyclic number.

It is not a de Polignac number, because 202003021231 - 21 = 202003021229 is a prime.

It is a super-3 number, since 3×2020030212313 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202003021211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8436166 + ... + 8460076.

It is an arithmetic number, because the mean of its divisors is an integer number (13849065216).

Almost surely, 2202003021231 is an apocalyptic number.

202003021231 is a deficient number, since it is larger than the sum of its proper divisors (19582022225).

202003021231 is a wasteful number, since it uses less digits than its factorization.

202003021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28134.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 202003021231 its reverse (132120300202), we get a palindrome (334123321433).

The spelling of 202003021231 in words is "two hundred two billion, three million, twenty-one thousand, two hundred thirty-one".

Divisors: 1 11 191 2101 4021 23911 44231 263021 768011 4567001 8448121 50237011 96146131 1057607441 18363911021 202003021231