| Base | Representation |
|---|---|
| bin | 111101101001… |
| … | …100110000100 |
| 3 | 1010102001221100 |
| 4 | 331221212010 |
| 5 | 13114124111 |
| 6 | 1334220100 |
| 7 | 254240034 |
| oct | 75514604 |
| 9 | 33361840 |
| 10 | 16161156 |
| 11 | 9139130 |
| 12 | 54b4630 |
| 13 | 346b01b |
| 14 | 22098c4 |
| 15 | 1643756 |
| hex | f69984 |
16161156 has 72 divisors (see below), whose sum is σ = 45811584. Its totient is φ = 4760640.
The previous prime is 16161151. The next prime is 16161161. The reversal of 16161156 is 65116161.
16161156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (16161151) and next prime (16161161).
It is a super-2 number, since 2×161611562 = 522365926512672, which contains 22 as substring.
It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (16161151) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14101 + ... + 15203.
It is an arithmetic number, because the mean of its divisors is an integer number (636272).
Almost surely, 216161156 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 16161156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22905792).
16161156 is an abundant number, since it is smaller than the sum of its proper divisors (29650428).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
16161156 is a wasteful number, since it uses less digits than its factorization.
16161156 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1161 (or 1156 counting only the distinct ones).
The product of its digits is 1080, while the sum is 27.
The square root of 16161156 is about 4020.0940287511. The cubic root of 16161156 is about 252.8274013253.
It can be divided in two parts, 1616 and 1156, that added together give a palindrome (2772).
The spelling of 16161156 in words is "sixteen million, one hundred sixty-one thousand, one hundred fifty-six".
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