Base | Representation |
---|---|
bin | 10001010101001… |
… | …01000100011111 |
3 | 101010120001100012 |
4 | 20222211010133 |
5 | 244204121430 |
6 | 22231553435 |
7 | 3413464163 |
oct | 1052450437 |
9 | 333501305 |
10 | 145379615 |
11 | 75076947 |
12 | 4082b87b |
13 | 24171b54 |
14 | 15444ca3 |
15 | cb6a695 |
hex | 8aa511f |
145379615 has 16 divisors (see below), whose sum is σ = 182784000. Its totient is φ = 110864160.
The previous prime is 145379609. The next prime is 145379617. The reversal of 145379615 is 516973541.
It is not a de Polignac number, because 145379615 - 26 = 145379551 is a prime.
It is a super-2 number, since 2×1453796152 = 42270464915096450, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (145379617) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3386 + ... + 17384.
It is an arithmetic number, because the mean of its divisors is an integer number (11424000).
Almost surely, 2145379615 is an apocalyptic number.
145379615 is a deficient number, since it is larger than the sum of its proper divisors (37404385).
145379615 is a wasteful number, since it uses less digits than its factorization.
145379615 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14102.
The product of its digits is 113400, while the sum is 41.
The square root of 145379615 is about 12057.3469303989. The cubic root of 145379615 is about 525.8168568745.
The spelling of 145379615 in words is "one hundred forty-five million, three hundred seventy-nine thousand, six hundred fifteen".
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