Search a number
-
+
23133011431 = 411289437719
BaseRepresentation
bin10101100010110101…
…011011110111100111
32012201011211201222011
4111202311123313213
5334334022331211
614343244415051
71446154232005
oct254265336747
965634751864
1023133011431
1198a0a88972
124597247487
1322487c055a
141196433a75
15905d35921
hex562d5bde7

23133011431 has 8 divisors (see below), whose sum is σ = 23715669600. Its totient is φ = 22551231360.

The previous prime is 23133011411. The next prime is 23133011471. The reversal of 23133011431 is 13411033132.

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 23133011431 - 213 = 23133003239 is a prime.

It is a super-2 number, since 2×231330114312 (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 (23133011411) 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, 166011 + ... + 271708.

It is an arithmetic number, because the mean of its divisors is an integer number (2964458700).

Almost surely, 223133011431 is an apocalyptic number.

23133011431 is a deficient number, since it is larger than the sum of its proper divisors (582658169).

23133011431 is a wasteful number, since it uses less digits than its factorization.

23133011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439049.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 23133011431 its reverse (13411033132), we get a palindrome (36544044563).

The spelling of 23133011431 in words is "twenty-three billion, one hundred thirty-three million, eleven thousand, four hundred thirty-one".

Divisors: 1 41 1289 52849 437719 17946479 564219791 23133011431