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2042031001 = 2182193581
BaseRepresentation
bin111100110110110…
…1110101110011001
312021022102220220211
41321231232232121
513140224443001
6534343451121
7101413656103
oct17155565631
95238386824
102042031001
1195874512a
1248ba56aa1
132670a248a
141552ba573
15be416351
hex79b6eb99

2042031001 has 4 divisors (see below), whose sum is σ = 2042146404. Its totient is φ = 2041915600.

The previous prime is 2042030987. The next prime is 2042031037. The reversal of 2042031001 is 1001302402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 993825625 + 1048205376 = 31525^2 + 32376^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042031001 - 217 = 2041899929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042031091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24970 + ... + 68611.

It is an arithmetic number, because the mean of its divisors is an integer number (510536601).

Almost surely, 22042031001 is an apocalyptic number.

It is an amenable number.

2042031001 is a deficient number, since it is larger than the sum of its proper divisors (115403).

2042031001 is an equidigital number, since it uses as much as digits as its factorization.

2042031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115402.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2042031001 is about 45188.8371282112. The cubic root of 2042031001 is about 1268.6858916348.

Adding to 2042031001 its reverse (1001302402), we get a palindrome (3043333403).

The spelling of 2042031001 in words is "two billion, forty-two million, thirty-one thousand, one".

Divisors: 1 21821 93581 2042031001