Base | Representation |
---|---|
bin | 111101001001101111… |
… | …0101101101011000110 |
3 | 110112222010222220210211 |
4 | 1322103132231223012 |
5 | 4122422232233110 |
6 | 140155030310034 |
7 | 12326212545106 |
oct | 1722336555306 |
9 | 415863886724 |
10 | 131323321030 |
11 | 5076a655880 |
12 | 2154bab831a |
13 | c4cb0b6725 |
14 | 64db13b206 |
15 | 363910d98a |
hex | 1e937adac6 |
131323321030 has 128 divisors (see below), whose sum is σ = 280858669056. Its totient is φ = 43720934400.
The previous prime is 131323321027. The next prime is 131323321043. The reversal of 131323321030 is 30123323131.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a junction number, because it is equal to n+sod(n) for n = 131323320992 and 131323321010.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5485747 + ... + 5509633.
It is an arithmetic number, because the mean of its divisors is an integer number (2194208352).
Almost surely, 2131323321030 is an apocalyptic number.
131323321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
131323321030 is an abundant number, since it is smaller than the sum of its proper divisors (149535348026).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131323321030 is a wasteful number, since it uses less digits than its factorization.
131323321030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24022.
The product of its (nonzero) digits is 972, while the sum is 22.
Adding to 131323321030 its reverse (30123323131), we get a palindrome (161446644161).
The spelling of 131323321030 in words is "one hundred thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, thirty".
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