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23002003001 = 231000087087
BaseRepresentation
bin10101011011000001…
…101011011000111001
32012101001022211012002
4111123001223120321
5334102003044001
614322244430345
71443003541145
oct253301533071
965331284162
1023002003001
11983403833a
12455b3a83b5
132227610a83
141182c90225
158e95a846b
hex55b06b639

23002003001 has 4 divisors (see below), whose sum is σ = 24002090112. Its totient is φ = 22001915892.

The previous prime is 23002002953. The next prime is 23002003027. The reversal of 23002003001 is 10030020032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23002003001 - 214 = 23001986617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23002003501) 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, 500043521 + ... + 500043566.

It is an arithmetic number, because the mean of its divisors is an integer number (6000522528).

Almost surely, 223002003001 is an apocalyptic number.

It is an amenable number.

23002003001 is a deficient number, since it is larger than the sum of its proper divisors (1000087111).

23002003001 is a wasteful number, since it uses less digits than its factorization.

23002003001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000087110.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 23002003001 its reverse (10030020032), we get a palindrome (33032023033).

The spelling of 23002003001 in words is "twenty-three billion, two million, three thousand, one".

Divisors: 1 23 1000087087 23002003001