Base | Representation |
---|---|
bin | 101001010101001… |
… | …1011000010001000 |
3 | 10120122121101221222 |
4 | 1102222123002020 |
5 | 10320013234423 |
6 | 345341021212 |
7 | 46240023500 |
oct | 12252330210 |
9 | 3518541858 |
10 | 1386852488 |
11 | 65192988a |
12 | 328554808 |
13 | 191427398 |
14 | d228ca00 |
15 | 81b493c8 |
hex | 52a9b088 |
1386852488 has 48 divisors (see below), whose sum is σ = 3029521500. Its totient is φ = 593456640.
The previous prime is 1386852473. The next prime is 1386852491. The reversal of 1386852488 is 8842586831.
It can be written as a sum of positive squares in 2 ways, for example, as 1383691204 + 3161284 = 37198^2 + 1778^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295988 + ... + 300636.
Almost surely, 21386852488 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 1386852488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514760750).
1386852488 is an abundant number, since it is smaller than the sum of its proper divisors (1642669012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1386852488 is a wasteful number, since it uses less digits than its factorization.
1386852488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5430 (or 5419 counting only the distinct ones).
The product of its digits is 2949120, while the sum is 53.
The square root of 1386852488 is about 37240.4684181067. The cubic root of 1386852488 is about 1115.1760232064.
The spelling of 1386852488 in words is "one billion, three hundred eighty-six million, eight hundred fifty-two thousand, four hundred eighty-eight".
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