Base | Representation |
---|---|
bin | 100111001100100… |
… | …1101000110101101 |
3 | 10101122211121112212 |
4 | 1032121031012231 |
5 | 10143144331000 |
6 | 334301540205 |
7 | 44410162106 |
oct | 11631150655 |
9 | 3348747485 |
10 | 1315230125 |
11 | 61545a950 |
12 | 308574665 |
13 | 17c63b2a1 |
14 | c69673ad |
15 | 7a6ecc35 |
hex | 4e64d1ad |
1315230125 has 32 divisors (see below), whose sum is σ = 1797928704. Its totient is φ = 952632000.
The previous prime is 1315230053. The next prime is 1315230131. The reversal of 1315230125 is 5210325131.
It is a happy number.
It is not a de Polignac number, because 1315230125 - 218 = 1314967981 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1315230125.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359807 + ... + 363443.
It is an arithmetic number, because the mean of its divisors is an integer number (56185272).
Almost surely, 21315230125 is an apocalyptic number.
It is an amenable number.
1315230125 is a deficient number, since it is larger than the sum of its proper divisors (482698579).
1315230125 is a wasteful number, since it uses less digits than its factorization.
1315230125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3926 (or 3916 counting only the distinct ones).
The product of its (nonzero) digits is 900, while the sum is 23.
The square root of 1315230125 is about 36266.1015963944. The cubic root of 1315230125 is about 1095.6384106193.
Adding to 1315230125 its reverse (5210325131), we get a palindrome (6525555256).
The spelling of 1315230125 in words is "one billion, three hundred fifteen million, two hundred thirty thousand, one hundred twenty-five".
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