Base | Representation |
---|---|
bin | 111111101100001100… |
… | …101000110110111100 |
3 | 20112112000200000121110 |
4 | 333230030220312330 |
5 | 2110024113324000 |
6 | 51230000002020 |
7 | 4640461665330 |
oct | 775414506674 |
9 | 215460600543 |
10 | 68387245500 |
11 | 270038a9812 |
12 | 11306900310 |
13 | 65ab297352 |
14 | 344a7617c0 |
15 | 1ba3c42850 |
hex | fec328dbc |
68387245500 has 384 divisors, whose sum is σ = 238849228800. Its totient is φ = 14866156800.
The previous prime is 68387245463. The next prime is 68387245517. The reversal of 68387245500 is 554278386.
It is a self number, because there is not a number n which added to its sum of digits gives 68387245500.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48057789 + ... + 48059211.
It is an arithmetic number, because the mean of its divisors is an integer number (622003200).
Almost surely, 268387245500 is an apocalyptic number.
68387245500 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 68387245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119424614400).
68387245500 is an abundant number, since it is smaller than the sum of its proper divisors (170461983300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68387245500 is a wasteful number, since it uses less digits than its factorization.
68387245500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1674 (or 1662 counting only the distinct ones).
The product of its (nonzero) digits is 1612800, while the sum is 48.
The spelling of 68387245500 in words is "sixty-eight billion, three hundred eighty-seven million, two hundred forty-five thousand, five hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.087 sec. • engine limits •