Search a number
-
+
23020312001 = 31223737287
BaseRepresentation
bin10101011100000111…
…100001010111000001
32012102022210000102012
4111130013201113001
5334121144441001
614324141102305
71443315265151
oct253407412701
965368700365
1023020312001
119843403145
124565557995
13222b3515bb
141185498761
158eaec32bb
hex55c1e15c1

23020312001 has 4 divisors (see below), whose sum is σ = 23021080512. Its totient is φ = 23019543492.

The previous prime is 23020311997. The next prime is 23020312009. The reversal of 23020312001 is 10021302032.

It is a happy number.

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 23020312001 - 22 = 23020311997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23020312009) 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, 337421 + ... + 399866.

It is an arithmetic number, because the mean of its divisors is an integer number (5755270128).

Almost surely, 223020312001 is an apocalyptic number.

It is an amenable number.

23020312001 is a deficient number, since it is larger than the sum of its proper divisors (768511).

23020312001 is an equidigital number, since it uses as much as digits as its factorization.

23020312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768510.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23020312001 its reverse (10021302032), we get a palindrome (33041614033).

It can be divided in two parts, 2302031 and 2001, that added together give a palindrome (2304032).

The spelling of 23020312001 in words is "twenty-three billion, twenty million, three hundred twelve thousand, one".

Divisors: 1 31223 737287 23020312001