Base | Representation |
---|---|
bin | 1000111111111010… |
… | …0111001001000110 |
3 | 20020100021220201021 |
4 | 2033332213021012 |
5 | 14421340231032 |
6 | 1035405421354 |
7 | 113600610550 |
oct | 21776471106 |
9 | 6210256637 |
10 | 2415555142 |
11 | 102a577370 |
12 | 574b6a85a |
13 | 2c65a3b90 |
14 | 18cb4c4d0 |
15 | e20ea097 |
hex | 8ffa7246 |
2415555142 has 64 divisors (see below), whose sum is σ = 4923846144. Its totient is φ = 858205440.
The previous prime is 2415555137. The next prime is 2415555161.
2415555142 is nontrivially palindromic in base 10.
It is a junction number, because it is equal to n+sod(n) for n = 2415555098 and 2415555107.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158898 + ... + 173434.
It is an arithmetic number, because the mean of its divisors is an integer number (76935096).
Almost surely, 22415555142 is an apocalyptic number.
2415555142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
2415555142 is an abundant number, since it is smaller than the sum of its proper divisors (2508291002).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2415555142 is a wasteful number, since it uses less digits than its factorization.
2415555142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14653.
The product of its digits is 40000, while the sum is 34.
The square root of 2415555142 is about 49148.2974476227. The cubic root of 2415555142 is about 1341.7522080425.
It can be divided in two parts, 24155 and 55142, that added together give a palindrome (79297).
The spelling of 2415555142 in words is "two billion, four hundred fifteen million, five hundred fifty-five thousand, one hundred forty-two".
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