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2002423001 = 2969049069
BaseRepresentation
bin111011101011010…
…1000110011011001
312011112220121221212
41313112220303121
513100110014001
6530410512505
7100423212635
oct16726506331
95145817855
102002423001
11938352047
1247a735735
1325bb151a7
1414dd29dc5
15babe07bb
hex775a8cd9

2002423001 has 4 divisors (see below), whose sum is σ = 2071472100. Its totient is φ = 1933373904.

The previous prime is 2002422997. The next prime is 2002423039. The reversal of 2002423001 is 1003242002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 957840601 + 1044582400 = 30949^2 + 32320^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002423001 - 22 = 2002422997 is a prime.

It is a super-3 number, since 3×20024230013 (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002423201) 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, 34524506 + ... + 34524563.

It is an arithmetic number, because the mean of its divisors is an integer number (517868025).

Almost surely, 22002423001 is an apocalyptic number.

It is an amenable number.

2002423001 is a deficient number, since it is larger than the sum of its proper divisors (69049099).

2002423001 is an equidigital number, since it uses as much as digits as its factorization.

2002423001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69049098.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2002423001 is about 44748.4413248104. The cubic root of 2002423001 is about 1260.4296428905.

Adding to 2002423001 its reverse (1003242002), we get a palindrome (3005665003).

The spelling of 2002423001 in words is "two billion, two million, four hundred twenty-three thousand, one".

Divisors: 1 29 69049069 2002423001