Base | Representation |
---|---|
bin | 110010001110… |
… | …111110101010 |
3 | 220210000212020 |
4 | 302032332222 |
5 | 11332343204 |
6 | 1150125310 |
7 | 216634200 |
oct | 62167652 |
9 | 26700766 |
10 | 13168554 |
11 | 7484803 |
12 | 44b0836 |
13 | 2960b59 |
14 | 1a6b070 |
15 | 1251bd9 |
hex | c8efaa |
13168554 has 48 divisors (see below), whose sum is σ = 31321728. Its totient is φ = 3678528.
The previous prime is 13168553. The next prime is 13168567. The reversal of 13168554 is 45586131.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13168553) 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, 13342 + ... + 14294.
It is an arithmetic number, because the mean of its divisors is an integer number (652536).
Almost surely, 213168554 is an apocalyptic number.
13168554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 13168554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15660864).
13168554 is an abundant number, since it is smaller than the sum of its proper divisors (18153174).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13168554 is a wasteful number, since it uses less digits than its factorization.
13168554 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1019 (or 1012 counting only the distinct ones).
The product of its digits is 14400, while the sum is 33.
The square root of 13168554 is about 3628.8502311338. The cubic root of 13168554 is about 236.1453308629.
It can be divided in two parts, 1316 and 8554, that added together give a triangular number (9870 = T140).
The spelling of 13168554 in words is "thirteen million, one hundred sixty-eight thousand, five hundred fifty-four".
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