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202143004031 = 1773162887191
BaseRepresentation
bin1011110001000010101…
…0010111010101111111
3201022202200201120101002
42330100222113111333
511302442102112111
6232510242040515
720414202120113
oct2742052272577
9638680646332
10202143004031
1178801501911
123321534913b
13160a62b5cb7
149ad8963743
1553d168363b
hex2f10a9757f

202143004031 has 8 divisors (see below), whose sum is σ = 216965739744. Its totient is φ = 187646042880.

The previous prime is 202143003941. The next prime is 202143004039. The reversal of 202143004031 is 130400341202.

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 202143004031 - 218 = 202142741887 is a prime.

It is a super-2 number, since 2×2021430040312 (a number of 23 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 = 202143003994 and 202143004012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202143004039) 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, 81442355 + ... + 81444836.

It is an arithmetic number, because the mean of its divisors is an integer number (27120717468).

Almost surely, 2202143004031 is an apocalyptic number.

202143004031 is a deficient number, since it is larger than the sum of its proper divisors (14822735713).

202143004031 is a wasteful number, since it uses less digits than its factorization.

202143004031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162887281.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 202143004031 its reverse (130400341202), we get a palindrome (332543345233).

The spelling of 202143004031 in words is "two hundred two billion, one hundred forty-three million, four thousand, thirty-one".

Divisors: 1 17 73 1241 162887191 2769082247 11890764943 202143004031