Base | Representation |
---|---|
bin | 100000000100100000… |
… | …0000110100101010010 |
3 | 20120202200222211021222 |
4 | 1000021000012211102 |
5 | 2112021321424032 |
6 | 51345541445042 |
7 | 4655450402531 |
oct | 1001100064522 |
9 | 216680884258 |
10 | 68870498642 |
11 | 27231667a80 |
12 | 11420710782 |
13 | 665743795a |
14 | 34949d8318 |
15 | 1bd139da12 |
hex | 1009006952 |
68870498642 has 8 divisors (see below), whose sum is σ = 112697179632. Its totient is φ = 31304772100.
The previous prime is 68870498623. The next prime is 68870498647. The reversal of 68870498642 is 24689407886.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not an unprimeable number, because it can be changed into a prime (68870498647) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1565238584 + ... + 1565238627.
It is an arithmetic number, because the mean of its divisors is an integer number (14087147454).
Almost surely, 268870498642 is an apocalyptic number.
68870498642 is a deficient number, since it is larger than the sum of its proper divisors (43826680990).
68870498642 is a wasteful number, since it uses less digits than its factorization.
68870498642 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3130477224.
The product of its (nonzero) digits is 37158912, while the sum is 62.
The spelling of 68870498642 in words is "sixty-eight billion, eight hundred seventy million, four hundred ninety-eight thousand, six hundred forty-two".
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