Base | Representation |
---|---|
bin | 111101000000001100… |
… | …1101111010111011100 |
3 | 110112010211201122002102 |
4 | 1322000121233113130 |
5 | 4121243313001030 |
6 | 140103154144232 |
7 | 12315245152610 |
oct | 1720031572734 |
9 | 415124648072 |
10 | 131003250140 |
11 | 50615a12884 |
12 | 21480882078 |
13 | c4799ac179 |
14 | 64aa821340 |
15 | 361ae87c45 |
hex | 1e8066f5dc |
131003250140 has 48 divisors (see below), whose sum is σ = 314648796672. Its totient is φ = 44880972096.
The previous prime is 131003250139. The next prime is 131003250149. The reversal of 131003250140 is 41052300131.
It is a Harshad number since it is a multiple of its sum of digits (20).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131003250149) 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, 174992 + ... + 540951.
It is an arithmetic number, because the mean of its divisors is an integer number (6555183264).
Almost surely, 2131003250140 is an apocalyptic number.
131003250140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131003250140 is an abundant number, since it is smaller than the sum of its proper divisors (183645546532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131003250140 is a wasteful number, since it uses less digits than its factorization.
131003250140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 717266 (or 717264 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 20.
Adding to 131003250140 its reverse (41052300131), we get a palindrome (172055550271).
The spelling of 131003250140 in words is "one hundred thirty-one billion, three million, two hundred fifty thousand, one hundred forty".
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