Base | Representation |
---|---|
bin | 100000000010000001… |
… | …1100111010000000001 |
3 | 20120112220212201120001 |
4 | 1000010003213100001 |
5 | 2111334102022201 |
6 | 51333415320001 |
7 | 4653422244601 |
oct | 1000403472001 |
9 | 216486781501 |
10 | 68787532801 |
11 | 27199850569 |
12 | 113b8980001 |
13 | 66431a9640 |
14 | 348799cc01 |
15 | 1bc8e61301 |
hex | 10040e7401 |
68787532801 has 16 divisors (see below), whose sum is σ = 76482972160. Its totient is φ = 61436309760.
The previous prime is 68787532787. The next prime is 68787532829. The reversal of 68787532801 is 10823578786.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 68787532801 - 211 = 68787530753 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68787532001) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2676430 + ... + 2702008.
It is an arithmetic number, because the mean of its divisors is an integer number (4780185760).
Almost surely, 268787532801 is an apocalyptic number.
It is an amenable number.
68787532801 is a deficient number, since it is larger than the sum of its proper divisors (7695439359).
68787532801 is a wasteful number, since it uses less digits than its factorization.
68787532801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32296.
The product of its (nonzero) digits is 4515840, while the sum is 55.
The spelling of 68787532801 in words is "sixty-eight billion, seven hundred eighty-seven million, five hundred thirty-two thousand, eight hundred one".
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