Base | Representation |
---|---|
bin | 101000100000… |
… | …011111111000 |
3 | 201222111100120 |
4 | 220200133320 |
5 | 10204300442 |
6 | 1015333240 |
7 | 156154545 |
oct | 50403770 |
9 | 21874316 |
10 | 10618872 |
11 | 5aa3130 |
12 | 3681220 |
13 | 227a474 |
14 | 15a5bcc |
15 | deb4ec |
hex | a207f8 |
10618872 has 128 divisors (see below), whose sum is σ = 31968000. Its totient is φ = 2903040.
The previous prime is 10618871. The next prime is 10618873. The reversal of 10618872 is 27881601.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (10618871) and next prime (10618873).
It is a super-2 number, since 2×106188722 = 225520885104768, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10618871) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145428 + ... + 145500.
It is an arithmetic number, because the mean of its divisors is an integer number (249750).
Almost surely, 210618872 is an apocalyptic number.
10618872 is a gapful number since it is divisible by the number (12) 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 10618872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15984000).
10618872 is an abundant number, since it is smaller than the sum of its proper divisors (21349128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10618872 is a wasteful number, since it uses less digits than its factorization.
10618872 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 141 (or 137 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 33.
The square root of 10618872 is about 3258.6610747361. The cubic root of 10618872 is about 219.7992107391.
The spelling of 10618872 in words is "ten million, six hundred eighteen thousand, eight hundred seventy-two".
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