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2020132131 = 343181241359
BaseRepresentation
bin111100001101000…
…1100010100100011
312012210020100022120
41320122030110203
513114123212011
6532242235323
7101026561023
oct17032142443
95183210276
102020132131
11947348196
12484655b43
132626a5974
14152419a83
15bc53ca06
hex7868c523

2020132131 has 32 divisors (see below), whose sum is σ = 2790627840. Its totient is φ = 1299110400.

The previous prime is 2020132123. The next prime is 2020132171. The reversal of 2020132131 is 1312310202.

It is not a de Polignac number, because 2020132131 - 23 = 2020132123 is a prime.

It is a super-2 number, since 2×20201321312 = 8161867653397202322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2020132131.

It is not an unprimeable number, because it can be changed into a prime (2020132111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5626930 + ... + 5627288.

It is an arithmetic number, because the mean of its divisors is an integer number (87207120).

Almost surely, 22020132131 is an apocalyptic number.

2020132131 is a deficient number, since it is larger than the sum of its proper divisors (770495709).

2020132131 is a wasteful number, since it uses less digits than its factorization.

2020132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2020132131 is about 44945.8800225338. The cubic root of 2020132131 is about 1264.1344265897.

Adding to 2020132131 its reverse (1312310202), we get a palindrome (3332442333).

The spelling of 2020132131 in words is "two billion, twenty million, one hundred thirty-two thousand, one hundred thirty-one".

Divisors: 1 3 43 129 181 241 359 543 723 1077 7783 10363 15437 23349 31089 43621 46311 64979 86519 130863 194937 259557 1875703 2794097 3720317 5627109 8382291 11160951 15659939 46979817 673377377 2020132131