Base | Representation |
---|---|
bin | 110001100110… |
… | …001011000111 |
3 | 220110112120220 |
4 | 301212023013 |
5 | 11312021130 |
6 | 1142355423 |
7 | 215340000 |
oct | 61461307 |
9 | 26415526 |
10 | 13001415 |
11 | 7380179 |
12 | 442bb73 |
13 | 2902a5b |
14 | 1a261a7 |
15 | 121c410 |
hex | c662c7 |
13001415 has 60 divisors (see below), whose sum is σ = 25612344. Its totient is φ = 5630688.
The previous prime is 13001407. The next prime is 13001459. The reversal of 13001415 is 51410031.
13001415 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13001415 - 23 = 13001407 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a junction number, because it is equal to n+sod(n) for n = 13001394 and 13001403.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 684276 + ... + 684294.
Almost surely, 213001415 is an apocalyptic number.
13001415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
13001415 is a deficient number, since it is larger than the sum of its proper divisors (12610929).
13001415 is an frugal number, since it uses more digits than its factorization.
13001415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 74 (or 34 counting only the distinct ones).
The product of its (nonzero) digits is 60, while the sum is 15.
The square root of 13001415 is about 3605.7474953191. The cubic root of 13001415 is about 235.1419995871.
Multiplying 13001415 by its sum of digits (15), we get a square (195021225 = 139652).
13001415 divided by its sum of digits (15) gives a square (866761 = 9312).
Multiplying 13001415 by its product of nonzero digits (60), we get a square (780084900 = 279302).
Adding to 13001415 its reverse (51410031), we get a palindrome (64411446).
The spelling of 13001415 in words is "thirteen million, one thousand, four hundred fifteen".
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