Base | Representation |
---|---|
bin | 100000001101111… |
… | …1101000101011101 |
3 | 2210100020001010120 |
4 | 1000123331011131 |
5 | 4203223214132 |
6 | 255135025153 |
7 | 35534641224 |
oct | 10033750535 |
9 | 2710201116 |
10 | 1081069917 |
11 | 505265914 |
12 | 26206b1b9 |
13 | 142c83555 |
14 | a3811cbb |
15 | 64d9702c |
hex | 406fd15d |
1081069917 has 16 divisors (see below), whose sum is σ = 1507896000. Its totient is φ = 688037504.
The previous prime is 1081069903. The next prime is 1081069931. The reversal of 1081069917 is 7199601801.
It is an interprime number because it is at equal distance from previous prime (1081069903) and next prime (1081069931).
It is a cyclic number.
It is not a de Polignac number, because 1081069917 - 218 = 1080807773 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1081069817) 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, 62067 + ... + 77552.
It is an arithmetic number, because the mean of its divisors is an integer number (94243500).
Almost surely, 21081069917 is an apocalyptic number.
It is an amenable number.
1081069917 is a deficient number, since it is larger than the sum of its proper divisors (426826083).
1081069917 is a wasteful number, since it uses less digits than its factorization.
1081069917 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 139740.
The product of its (nonzero) digits is 27216, while the sum is 42.
The square root of 1081069917 is about 32879.6276894979. The cubic root of 1081069917 is about 1026.3242584721.
The spelling of 1081069917 in words is "one billion, eighty-one million, sixty-nine thousand, nine hundred seventeen".
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