Base | Representation |
---|---|
bin | 100000010100100010… |
… | …1011010000010000110 |
3 | 20122011012211022222200 |
4 | 1000221011122002012 |
5 | 2114122120304232 |
6 | 51515210335330 |
7 | 5005004503464 |
oct | 1005105320206 |
9 | 218135738880 |
10 | 69408759942 |
11 | 27488487725 |
12 | 11550a2a546 |
13 | 6711ac8072 |
14 | 35062ad834 |
15 | 1c1377377c |
hex | 102915a086 |
69408759942 has 48 divisors (see below), whose sum is σ = 152335909440. Its totient is φ = 22836393216.
The previous prime is 69408759941. The next prime is 69408759949. The reversal of 69408759942 is 24995780496.
It is a self number, because there is not a number n which added to its sum of digits gives 69408759942.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (69408759941) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6844708 + ... + 6854840.
It is an arithmetic number, because the mean of its divisors is an integer number (3173664780).
Almost surely, 269408759942 is an apocalyptic number.
69408759942 is an abundant number, since it is smaller than the sum of its proper divisors (82927149498).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69408759942 is a wasteful number, since it uses less digits than its factorization.
69408759942 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15037 (or 15034 counting only the distinct ones).
The product of its (nonzero) digits is 39191040, while the sum is 63.
The spelling of 69408759942 in words is "sixty-nine billion, four hundred eight million, seven hundred fifty-nine thousand, nine hundred forty-two".
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