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202030101001 = 247818152621
BaseRepresentation
bin1011110000100111101…
…1101011001000001001
3201022110211021111112101
42330021323223020021
511302224201213001
6232451130113401
720411331344551
oct2741173531011
9638424244471
10202030101001
11787537a8123
12331a357b861
1316088aa5481
149ac7974161
1553c67d0a01
hex2f09eeb209

202030101001 has 4 divisors (see below), whose sum is σ = 202038278404. Its totient is φ = 202021923600.

The previous prime is 202030100969. The next prime is 202030101017. The reversal of 202030101001 is 100101030202.

202030101001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100101030202 = 250050515101.

It can be written as a sum of positive squares in 2 ways, for example, as 33828405625 + 168201695376 = 183925^2 + 410124^2 .

It is a cyclic number.

It is not a de Polignac number, because 202030101001 - 25 = 202030100969 is a prime.

It is a super-2 number, since 2×2020301010012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202030101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4051530 + ... + 4101091.

It is an arithmetic number, because the mean of its divisors is an integer number (50509569601).

Almost surely, 2202030101001 is an apocalyptic number.

It is an amenable number.

202030101001 is a deficient number, since it is larger than the sum of its proper divisors (8177403).

202030101001 is an equidigital number, since it uses as much as digits as its factorization.

202030101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8177402.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 202030101001 its reverse (100101030202), we get a palindrome (302131131203).

It can be divided in two parts, 202030 and 101001, that added together give a triangular number (303031 = T778).

The spelling of 202030101001 in words is "two hundred two billion, thirty million, one hundred one thousand, one".

Divisors: 1 24781 8152621 202030101001