Base | Representation |
---|---|
bin | 10000111000110… |
… | …10011010010100 |
3 | 100212120101010200 |
4 | 20130122122110 |
5 | 242231302230 |
6 | 22020220500 |
7 | 3340066143 |
oct | 1034323224 |
9 | 325511120 |
10 | 141665940 |
11 | 72a6a799 |
12 | 3b53a730 |
13 | 23471700 |
14 | 14b5975a |
15 | c685160 |
hex | 871a694 |
141665940 has 108 divisors (see below), whose sum is σ = 465418044. Its totient is φ = 34864128.
The previous prime is 141665929. The next prime is 141665941. The reversal of 141665940 is 49566141.
141665940 is a `hidden beast` number, since 1 + 4 + 1 + 66 + 594 + 0 = 666.
It can be written as a sum of positive squares in 6 ways, for example, as 55621764 + 86044176 = 7458^2 + 9276^2 .
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 141665895 and 141665904.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (141665941) by changing a digit.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 28092 + ... + 32748.
Almost surely, 2141665940 is an apocalyptic number.
141665940 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 141665940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232709022).
141665940 is an abundant number, since it is smaller than the sum of its proper divisors (323752104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
141665940 is a wasteful number, since it uses less digits than its factorization.
141665940 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4698 (or 4680 counting only the distinct ones).
The product of its (nonzero) digits is 25920, while the sum is 36.
The square root of 141665940 is about 11902.3501880931. The cubic root of 141665940 is about 521.3009094040.
The spelling of 141665940 in words is "one hundred forty-one million, six hundred sixty-five thousand, nine hundred forty".
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