Search a number
-
+
223021031312231 = 2334023123791897
BaseRepresentation
bin110010101101011000100001…
…010110010100101101100111
31002020122121021010111012100022
4302231120201112110231213
5213212434033003442411
62110154240345105355
764655511026653565
oct6255304126245547
91066577233435308
10223021031312231
1165074763036239
122101ab7818825b
139759a4032b959
143d103bdddca35
151abb44ebededb
hexcad621594b67

223021031312231 has 8 divisors (see below), whose sum is σ = 223983779838624. Its totient is φ = 222058330450560.

The previous prime is 223021031312221. The next prime is 223021031312267. The reversal of 223021031312231 is 132213130120322.

223021031312231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223021031312231 - 210 = 223021031311207 is a prime.

It is a super-2 number, since 2×2230210313122312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223021031312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223021031312221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2522126 + ... + 21269771.

It is an arithmetic number, because the mean of its divisors is an integer number (27997972479828).

Almost surely, 2223021031312231 is an apocalyptic number.

223021031312231 is a deficient number, since it is larger than the sum of its proper divisors (962748526393).

223021031312231 is a wasteful number, since it uses less digits than its factorization.

223021031312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23832361.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 223021031312231 its reverse (132213130120322), we get a palindrome (355234161432553).

The spelling of 223021031312231 in words is "two hundred twenty-three trillion, twenty-one billion, thirty-one million, three hundred twelve thousand, two hundred thirty-one".

Divisors: 1 233 40231 9373823 23791897 5543512001 957171808207 223021031312231