Base | Representation |
---|---|
bin | 11111001101000100110110… |
… | …01101111110000000000000 |
3 | 22222221220122012120212111000 |
4 | 33212202123031332000000 |
5 | 32443223203410314300 |
6 | 401535044552052000 |
7 | 20311362554244000 |
oct | 1746423315760000 |
9 | 288856565525430 |
10 | 68619001651200 |
11 | 1a9561785a1700 |
12 | 78429a4994000 |
13 | 2c399899c8030 |
14 | 12d326ab04000 |
15 | 7dee0eb49c00 |
hex | 3e689b37e000 |
68619001651200 has 8064 divisors, whose sum is σ = 363133257984000. Its totient is φ = 12589439385600.
The previous prime is 68619001651181. The next prime is 68619001651231. The reversal of 68619001651200 is 215610091686.
68619001651200 is a `hidden beast` number, since 6 + 8 + 619 + 0 + 0 + 1 + 6 + 5 + 1 + 20 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (8064).
It is a super-2 number, since 2×686190016512002 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 2983434854389 + ... + 2983434854411.
It is an arithmetic number, because the mean of its divisors is an integer number (45031406000).
Almost surely, 268619001651200 is an apocalyptic number.
68619001651200 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 68619001651200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181566628992000).
68619001651200 is an abundant number, since it is smaller than the sum of its proper divisors (294514256332800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68619001651200 is a wasteful number, since it uses less digits than its factorization.
68619001651200 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124 (or 64 counting only the distinct ones).
The product of its (nonzero) digits is 155520, while the sum is 45.
The spelling of 68619001651200 in words is "sixty-eight trillion, six hundred nineteen billion, one million, six hundred fifty-one thousand, two hundred".
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