Search a number
-
+
23023440231 = 3112819712557
BaseRepresentation
bin10101011100010011…
…011101000101100111
32012102112122221112120
4111130103131011213
5334123000041411
614324332121023
71443354004311
oct253423350547
965375587476
1023023440231
11984514a460
124566606173
13222bba841c
141185a707b1
158eb3e0106
hex55c4dd167

23023440231 has 32 divisors (see below), whose sum is σ = 33655585536. Its totient is φ = 13884192000.

The previous prime is 23023440179. The next prime is 23023440281. The reversal of 23023440231 is 13204432032.

It is not a de Polignac number, because 23023440231 - 211 = 23023438183 is a prime.

It is a super-2 number, since 2×230234402312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023440281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9002805 + ... + 9005361.

It is an arithmetic number, because the mean of its divisors is an integer number (1051737048).

Almost surely, 223023440231 is an apocalyptic number.

23023440231 is a deficient number, since it is larger than the sum of its proper divisors (10632145305).

23023440231 is a wasteful number, since it uses less digits than its factorization.

23023440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23023440231 its reverse (13204432032), we get a palindrome (36227872263).

The spelling of 23023440231 in words is "twenty-three billion, twenty-three million, four hundred forty thousand, two hundred thirty-one".

Divisors: 1 3 11 33 281 843 971 2557 2913 3091 7671 9273 10681 28127 32043 84381 272851 718517 818553 2155551 2482847 3001361 7448541 7903687 9004083 23711061 27311317 81933951 697680007 2093040021 7674480077 23023440231