Base | Representation |
---|---|
bin | 10000101111001… |
… | …01011000010000 |
3 | 100210012001210100 |
4 | 20113211120100 |
5 | 241420301034 |
6 | 21533132400 |
7 | 3323244603 |
oct | 1027453020 |
9 | 323161710 |
10 | 140400144 |
11 | 72285785 |
12 | 3b02a100 |
13 | 2311a511 |
14 | 1490a33a |
15 | c4d5099 |
hex | 85e5610 |
140400144 has 120 divisors (see below), whose sum is σ = 421660512. Its totient is φ = 43453440.
The previous prime is 140400133. The next prime is 140400173. The reversal of 140400144 is 441004041.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
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 23 ways as a sum of consecutive naturals, for example, 202839 + ... + 203529.
Almost surely, 2140400144 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 140400144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210830256).
140400144 is an abundant number, since it is smaller than the sum of its proper divisors (281260368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
140400144 is a wasteful number, since it uses less digits than its factorization.
140400144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 805 (or 796 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 18.
The square root of 140400144 is about 11849.0566713135. The cubic root of 140400144 is about 519.7436408946.
Adding to 140400144 its reverse (441004041), we get a palindrome (581404185).
The spelling of 140400144 in words is "one hundred forty million, four hundred thousand, one hundred forty-four".
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