Search a number
-
+
23110002031 = 231004782697
BaseRepresentation
bin10101100001011101…
…101010010101101111
32012122120112202000011
4111201131222111233
5334312130031111
614341103314051
71445454530134
oct254135522557
965576482004
1023110002031
119889aa2636
12458b5ab927
132243ac541c
14119336458b
15903cdd021
hex56176a56f

23110002031 has 4 divisors (see below), whose sum is σ = 24114784752. Its totient is φ = 22105219312.

The previous prime is 23110001987. The next prime is 23110002053. The reversal of 23110002031 is 13020001132.

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

It is a cyclic number.

It is not a de Polignac number, because 23110002031 - 225 = 23076447599 is a prime.

It is a super-2 number, since 2×231100020312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110042031) 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, 502391326 + ... + 502391371.

It is an arithmetic number, because the mean of its divisors is an integer number (6028696188).

Almost surely, 223110002031 is an apocalyptic number.

23110002031 is a deficient number, since it is larger than the sum of its proper divisors (1004782721).

23110002031 is a wasteful number, since it uses less digits than its factorization.

23110002031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004782720.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 23110002031 its reverse (13020001132), we get a palindrome (36130003163).

The spelling of 23110002031 in words is "twenty-three billion, one hundred ten million, two thousand, thirty-one".

Divisors: 1 23 1004782697 23110002031