Search a number
-
+
12120320233 = 729158337717
BaseRepresentation
bin10110100100110110…
…10110100011101001
31011021200112001200101
423102123112203221
5144310300221413
65322404305401
7606232010410
oct132233264351
934250461611
1012120320233
11515a671a8a
1224230a2261
1311b2071428
1482d9bc477
154ae0daedd
hex2d26d68e9

12120320233 has 16 divisors (see below), whose sum is σ = 14338874880. Its totient is φ = 10024007616.

The previous prime is 12120320231. The next prime is 12120320239. The reversal of 12120320233 is 33202302121.

It is not a de Polignac number, because 12120320233 - 21 = 12120320231 is a prime.

It is a super-3 number, since 3×121203202333 (a number of 31 digits) contains 333 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 12120320233.

It is not an unprimeable number, because it can be changed into a prime (12120320231) 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, 302491 + ... + 340207.

It is an arithmetic number, because the mean of its divisors is an integer number (896179680).

Almost surely, 212120320233 is an apocalyptic number.

It is an amenable number.

12120320233 is a deficient number, since it is larger than the sum of its proper divisors (2218554647).

12120320233 is a wasteful number, since it uses less digits than its factorization.

12120320233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39336.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12120320233 its reverse (33202302121), we get a palindrome (45322622354).

The spelling of 12120320233 in words is "twelve billion, one hundred twenty million, three hundred twenty thousand, two hundred thirty-three".

Divisors: 1 7 29 203 1583 11081 37717 45907 264019 321349 1093793 7656551 59706011 417942077 1731474319 12120320233