Search a number
-
+
23315231013 = 3591097120077
BaseRepresentation
bin10101101101101100…
…100011000100100101
32020011212201110020120
4111231230203010211
5340222144343023
614413314152153
71453526123304
oct255554430445
966155643216
1023315231013
119984927168
124628282659
1322774907a9
1411b270843b
15916d2b8e3
hex56db23125

23315231013 has 16 divisors (see below), whose sum is σ = 31642954560. Its totient is φ = 15265982336.

The previous prime is 23315231003. The next prime is 23315231029. The reversal of 23315231013 is 31013251332.

It is a cyclic number.

It is not a de Polignac number, because 23315231013 - 216 = 23315165477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23315231003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134131 + ... + 254207.

It is an arithmetic number, because the mean of its divisors is an integer number (1977684660).

Almost surely, 223315231013 is an apocalyptic number.

It is an amenable number.

23315231013 is a deficient number, since it is larger than the sum of its proper divisors (8327723547).

23315231013 is a wasteful number, since it uses less digits than its factorization.

23315231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121236.

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 23315231013 its reverse (31013251332), we get a palindrome (54328482345).

The spelling of 23315231013 in words is "twenty-three billion, three hundred fifteen million, two hundred thirty-one thousand, thirteen".

Divisors: 1 3 59 177 1097 3291 64723 120077 194169 360231 7084543 21253629 131724469 395173407 7771743671 23315231013