Base | Representation |
---|---|
bin | 10011001001000100000… |
… | …110000001001101110000 |
3 | 11122202021122201111220001 |
4 | 103021010012001031300 |
5 | 133022421004433404 |
6 | 2444142034555344 |
7 | 164014620045232 |
oct | 23110406011560 |
9 | 4582248644801 |
10 | 1315402421104 |
11 | 46794a413132 |
12 | 192b25738b54 |
13 | 97071121a95 |
14 | 47947004252 |
15 | 2433b22a7a4 |
hex | 13244181370 |
1315402421104 has 80 divisors (see below), whose sum is σ = 2684277302400. Its totient is φ = 623584217088.
The previous prime is 1315402421101. The next prime is 1315402421111. The reversal of 1315402421104 is 4011242045131.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1315402421101) 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, 7671897 + ... + 7841479.
It is an arithmetic number, because the mean of its divisors is an integer number (33553466280).
Almost surely, 21315402421104 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1315402421104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342138651200).
1315402421104 is an abundant number, since it is smaller than the sum of its proper divisors (1368874881296).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1315402421104 is a wasteful number, since it uses less digits than its factorization.
1315402421104 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169922 (or 169916 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 28.
Adding to 1315402421104 its reverse (4011242045131), we get a palindrome (5326644466235).
The spelling of 1315402421104 in words is "one trillion, three hundred fifteen billion, four hundred two million, four hundred twenty-one thousand, one hundred four".
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