Search a number
-
+
12308076532581 = 343216757440177
BaseRepresentation
bin1011001100011011001010…
…0001111001001101100101
31121120122022000102111101220
42303012302201321031211
53103123420043020311
642102130255210553
72410141416230154
oct263066241711545
947518260374356
1012308076532581
113a1590a371615
121469479b16a59
136b385387964b
143079dd62b59b
15165264696206
hexb31b2879365

12308076532581 has 16 divisors (see below), whose sum is σ = 16792530114624. Its totient is φ = 8014506280704.

The previous prime is 12308076532573. The next prime is 12308076532603. The reversal of 12308076532581 is 18523567080321.

It is a happy number.

12308076532581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12308076532581 - 23 = 12308076532573 is a prime.

It is a super-2 number, since 2×123080765325812 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308076532781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27741565 + ... + 28181741.

It is an arithmetic number, because the mean of its divisors is an integer number (1049533132164).

Almost surely, 212308076532581 is an apocalyptic number.

It is an amenable number.

12308076532581 is a deficient number, since it is larger than the sum of its proper divisors (4484453582043).

12308076532581 is a wasteful number, since it uses less digits than its factorization.

12308076532581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656980.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 12308076532581 in words is "twelve trillion, three hundred eight billion, seventy-six million, five hundred thirty-two thousand, five hundred eighty-one".

Divisors: 1 3 43 129 216757 440177 650271 1320531 9320551 18927611 27961653 56782833 95411445989 286234337967 4102692177527 12308076532581