Search a number
-
+
123531711190 = 2519650166901
BaseRepresentation
bin111001100001100010…
…0000101001011010110
3102210212010201010110121
41303003010011023112
54010443104224230
6132425533142154
711632142135326
oct1630304051326
9383763633417
10123531711190
1148431480aa8
121bb3662a95a
13b858aa77c4
145d9c3db286
15333007877a
hex1cc31052d6

123531711190 has 16 divisors (see below), whose sum is σ = 234060084720. Its totient is φ = 46812016800.

The previous prime is 123531711187. The next prime is 123531711197. The reversal of 123531711190 is 91117135321.

It is a super-2 number, since 2×1235317111902 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123531711197) 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, 325083261 + ... + 325083640.

It is an arithmetic number, because the mean of its divisors is an integer number (14628755295).

Almost surely, 2123531711190 is an apocalyptic number.

123531711190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123531711190 is a deficient number, since it is larger than the sum of its proper divisors (110528373530).

123531711190 is a wasteful number, since it uses less digits than its factorization.

123531711190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650166927.

The product of its (nonzero) digits is 5670, while the sum is 34.

The spelling of 123531711190 in words is "one hundred twenty-three billion, five hundred thirty-one million, seven hundred eleven thousand, one hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 650166901 1300333802 3250834505 6501669010 12353171119 24706342238 61765855595 123531711190