Base | Representation |
---|---|
bin | 1101101111110100010101… |
… | …0010100010010000100010 |
3 | 1222111222211221220110122200 |
4 | 3123331011102202100202 |
5 | 3440121313003321232 |
6 | 52051445525114030 |
7 | 3120014365355442 |
oct | 333750522422042 |
9 | 58458757813580 |
10 | 15115152401442 |
11 | 48a83335300a5 |
12 | 1841501b58916 |
13 | 858478008222 |
14 | 3a38120ac122 |
15 | 1b32a6c6977c |
hex | dbf454a2422 |
15115152401442 has 48 divisors (see below), whose sum is σ = 34488073389120. Its totient is φ = 4771140343200.
The previous prime is 15115152401383. The next prime is 15115152401443. The reversal of 15115152401442 is 24410425151151.
15115152401442 is a `hidden beast` number, since 1 + 5 + 115 + 1 + 524 + 0 + 14 + 4 + 2 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 15115152401397 and 15115152401406.
It is not an unprimeable number, because it can be changed into a prime (15115152401443) 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, 8771809 + ... + 10352532.
It is an arithmetic number, because the mean of its divisors is an integer number (718501528940).
Almost surely, 215115152401442 is an apocalyptic number.
15115152401442 is an abundant number, since it is smaller than the sum of its proper divisors (19372920987678).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15115152401442 is a wasteful number, since it uses less digits than its factorization.
15115152401442 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19126679 (or 19126676 counting only the distinct ones).
The product of its (nonzero) digits is 32000, while the sum is 36.
Adding to 15115152401442 its reverse (24410425151151), we get a palindrome (39525577552593).
The spelling of 15115152401442 in words is "fifteen trillion, one hundred fifteen billion, one hundred fifty-two million, four hundred one thousand, four hundred forty-two".
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