Base | Representation |
---|---|
bin | 101000001011010… |
… | …0111011001010111 |
3 | 10110221200212112000 |
4 | 1100112213121113 |
5 | 10230103341230 |
6 | 341434330343 |
7 | 45256465440 |
oct | 12026473127 |
9 | 3427625460 |
10 | 1348105815 |
11 | 631a74941 |
12 | 3175899b3 |
13 | 1863ac164 |
14 | cb0842c7 |
15 | 7d543b60 |
hex | 505a7657 |
1348105815 has 32 divisors (see below), whose sum is σ = 2739010560. Its totient is φ = 616276512.
The previous prime is 1348105807. The next prime is 1348105823. The reversal of 1348105815 is 5185018431.
It is an interprime number because it is at equal distance from previous prime (1348105807) and next prime (1348105823).
It is not a de Polignac number, because 1348105815 - 23 = 1348105807 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 1348105815.
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, 712339 + ... + 714228.
It is an arithmetic number, because the mean of its divisors is an integer number (85594080).
Almost surely, 21348105815 is an apocalyptic number.
1348105815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
1348105815 is an abundant number, since it is smaller than the sum of its proper divisors (1390904745).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1348105815 is a wasteful number, since it uses less digits than its factorization.
1348105815 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1426588 (or 1426582 counting only the distinct ones).
The product of its (nonzero) digits is 19200, while the sum is 36.
The square root of 1348105815 is about 36716.5605006787. The cubic root of 1348105815 is about 1104.6923011868.
It can be divided in two parts, 134810 and 5815, that added together give a square (140625 = 3752).
The spelling of 1348105815 in words is "one billion, three hundred forty-eight million, one hundred five thousand, eight hundred fifteen".
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