Base | Representation |
---|---|
bin | 100000010111001011… |
… | …0001010100011000000 |
3 | 20122101100221101010220 |
4 | 1000232112022203000 |
5 | 2114312220222130 |
6 | 51532042423040 |
7 | 5010126041112 |
oct | 1005626124300 |
9 | 218340841126 |
10 | 69497039040 |
11 | 275232a3060 |
12 | 11576501a80 |
13 | 6727196910 |
14 | 3513ccd3b2 |
15 | 1c1b3b0410 |
hex | 102e58a8c0 |
69497039040 has 896 divisors, whose sum is σ = 278210515968. Its totient is φ = 14438891520.
The previous prime is 69497038997. The next prime is 69497039041. The reversal of 69497039040 is 4093079496.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is not an unprimeable number, because it can be changed into a prime (69497039041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 226374567 + ... + 226374873.
It is an arithmetic number, because the mean of its divisors is an integer number (310502808).
Almost surely, 269497039040 is an apocalyptic number.
69497039040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 69497039040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139105257984).
69497039040 is an abundant number, since it is smaller than the sum of its proper divisors (208713476928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69497039040 is a wasteful number, since it uses less digits than its factorization.
69497039040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 465 (or 455 counting only the distinct ones).
The product of its (nonzero) digits is 1469664, while the sum is 51.
The spelling of 69497039040 in words is "sixty-nine billion, four hundred ninety-seven million, thirty-nine thousand, forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •