Base | Representation |
---|---|
bin | 11101010010001000… |
… | …011001001100101110 |
3 | 10000011021222211001010 |
4 | 131102020121030232 |
5 | 1003343313000100 |
6 | 22240010130050 |
7 | 2162115365325 |
oct | 352210311456 |
9 | 100137884033 |
10 | 31442703150 |
11 | 1237564a291 |
12 | 6116120926 |
13 | 2c712458c1 |
14 | 1743cb50bc |
15 | c40606750 |
hex | 75221932e |
31442703150 has 192 divisors, whose sum is σ = 84292462080. Its totient is φ = 7737100800.
The previous prime is 31442703143. The next prime is 31442703151. The reversal of 31442703150 is 5130724413.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (31442703151) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11152441 + ... + 11155259.
It is an arithmetic number, because the mean of its divisors is an integer number (439023240).
Almost surely, 231442703150 is an apocalyptic number.
31442703150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 31442703150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42146231040).
31442703150 is an abundant number, since it is smaller than the sum of its proper divisors (52849758930).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31442703150 is a wasteful number, since it uses less digits than its factorization.
31442703150 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2971 (or 2966 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 30.
The spelling of 31442703150 in words is "thirty-one billion, four hundred forty-two million, seven hundred three thousand, one hundred fifty".
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