| Base | Representation |
|---|---|
| bin | 100010101000101… |
| … | …0010101101101000 |
| 3 | 2222222210220012000 |
| 4 | 1011101102231220 |
| 5 | 4340003123000 |
| 6 | 311153051000 |
| 7 | 40541130330 |
| oct | 10521225550 |
| 9 | 2888726160 |
| 10 | 1162161000 |
| 11 | 547011840 |
| 12 | 285256a60 |
| 13 | 156a06440 |
| 14 | b04c00c0 |
| 15 | 6c064000 |
| hex | 45452b68 |
1162161000 has 1024 divisors, whose sum is σ = 5535129600. Its totient is φ = 217728000.
The previous prime is 1162160983. The next prime is 1162161017. The reversal of 1162161000 is 1612611.
It is an interprime number because it is at equal distance from previous prime (1162160983) and next prime (1162161017).
It is a harmonic number, since the harmonic mean of its divisors is an integer.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
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 255 ways as a sum of consecutive naturals, for example, 27026979 + ... + 27027021.
It is an arithmetic number, because the mean of its divisors is an integer number (5405400).
Almost surely, 21162161000 is an apocalyptic number.
1162161000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1162161000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2767564800).
1162161000 is an abundant number, since it is smaller than the sum of its proper divisors (4372968600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1162161000 is a wasteful number, since it uses less digits than its factorization.
1162161000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 104 (or 84 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 18.
The square root of 1162161000 is about 34090.4825427860. The cubic root of 1162161000 is about 1051.3696412070.
Adding to 1162161000 its reverse (1612611), we get a palindrome (1163773611).
The spelling of 1162161000 in words is "one billion, one hundred sixty-two million, one hundred sixty-one thousand".
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