Base | Representation |
---|---|
bin | 111101010101111… |
… | …000010100111110 |
3 | 2122201112000210111 |
4 | 331111320110332 |
5 | 4101430132133 |
6 | 250042100234 |
7 | 34334411263 |
oct | 7525702476 |
9 | 2581460714 |
10 | 1029145918 |
11 | 488a20619 |
12 | 2487aa67a |
13 | 1352a34a8 |
14 | 9a97726a |
15 | 6053c1cd |
hex | 3d57853e |
1029145918 has 32 divisors (see below), whose sum is σ = 1607306976. Its totient is φ = 493882368.
The previous prime is 1029145913. The next prime is 1029145937. The reversal of 1029145918 is 8195419201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1029145913) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330980 + ... + 1331752.
It is an arithmetic number, because the mean of its divisors is an integer number (50228343).
Almost surely, 21029145918 is an apocalyptic number.
1029145918 is a deficient number, since it is larger than the sum of its proper divisors (578161058).
1029145918 is a wasteful number, since it uses less digits than its factorization.
1029145918 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1068.
The product of its (nonzero) digits is 25920, while the sum is 40.
The square root of 1029145918 is about 32080.3042067871. The cubic root of 1029145918 is about 1009.6224180873.
The spelling of 1029145918 in words is "one billion, twenty-nine million, one hundred forty-five thousand, nine hundred eighteen".
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