Base | Representation |
---|---|
bin | 111111011001111001… |
… | …000110101001010100 |
3 | 20111201121210011211212 |
4 | 333121321012221110 |
5 | 2103412003302430 |
6 | 51135305320552 |
7 | 4630042411562 |
oct | 773171065124 |
9 | 214647704755 |
10 | 68080134740 |
11 | 26966508972 |
12 | 1123ba96158 |
13 | 655c779ac7 |
14 | 341ba5aa32 |
15 | 1b86ccbb95 |
hex | fd9e46a54 |
68080134740 has 24 divisors (see below), whose sum is σ = 144383814792. Its totient is φ = 26962428800.
The previous prime is 68080134739. The next prime is 68080134769. The reversal of 68080134740 is 4743108086.
It can be written as a sum of positive squares in 4 ways, for example, as 25180611856 + 42899522884 = 158684^2 + 207122^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16849499 + ... + 16853538.
It is an arithmetic number, because the mean of its divisors is an integer number (6015992283).
Almost surely, 268080134740 is an apocalyptic number.
It is an amenable number.
68080134740 is an abundant number, since it is smaller than the sum of its proper divisors (76303680052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68080134740 is a wasteful number, since it uses less digits than its factorization.
68080134740 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33703147 (or 33703145 counting only the distinct ones).
The product of its (nonzero) digits is 129024, while the sum is 41.
The spelling of 68080134740 in words is "sixty-eight billion, eighty million, one hundred thirty-four thousand, seven hundred forty".
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