Base | Representation |
---|---|
bin | 10000111100101… |
… | …11110010000000 |
3 | 100220112110112210 |
4 | 20132113302000 |
5 | 242344220311 |
6 | 22035222120 |
7 | 3344335236 |
oct | 1036276200 |
9 | 326473483 |
10 | 142179456 |
11 | 73290591 |
12 | 3b747940 |
13 | 235c1373 |
14 | 14c50956 |
15 | c7373a6 |
hex | 8797c80 |
142179456 has 64 divisors (see below), whose sum is σ = 387910080. Its totient is φ = 46107648.
The previous prime is 142179403. The next prime is 142179461. The reversal of 142179456 is 654971241.
It is a tau number, because it is divible by the number of its divisors (64).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9205 + ... + 19211.
It is an arithmetic number, because the mean of its divisors is an integer number (6061095).
Almost surely, 2142179456 is an apocalyptic number.
142179456 is a gapful number since it is divisible by the number (16) 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 142179456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193955040).
142179456 is an abundant number, since it is smaller than the sum of its proper divisors (245730624).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142179456 is a wasteful number, since it uses less digits than its factorization.
142179456 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10061 (or 10049 counting only the distinct ones).
The product of its digits is 60480, while the sum is 39.
The square root of 142179456 is about 11923.9027168121. The cubic root of 142179456 is about 521.9300268797.
The spelling of 142179456 in words is "one hundred forty-two million, one hundred seventy-nine thousand, four hundred fifty-six".
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