Base | Representation |
---|---|
bin | 10000111011111… |
… | …11000100101000 |
3 | 100220100022201100 |
4 | 20131333010220 |
5 | 242333000443 |
6 | 22033121400 |
7 | 3343434204 |
oct | 1035770450 |
9 | 326308640 |
10 | 142078248 |
11 | 73221544 |
12 | 3b6b9260 |
13 | 23587290 |
14 | 14c25b04 |
15 | c7173d3 |
hex | 877f128 |
142078248 has 96 divisors (see below), whose sum is σ = 438820200. Its totient is φ = 41140224.
The previous prime is 142078229. The next prime is 142078267. The reversal of 142078248 is 842870241.
142078248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (142078229) and next prime (142078267).
It can be written as a sum of positive squares in 4 ways, for example, as 78110244 + 63968004 = 8838^2 + 7998^2 .
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11448 + ... + 20376.
Almost surely, 2142078248 is an apocalyptic number.
142078248 is a gapful number since it is divisible by the number (18) 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 142078248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219410100).
142078248 is an abundant number, since it is smaller than the sum of its proper divisors (296741952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142078248 is a wasteful number, since it uses less digits than its factorization.
142078248 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8971 (or 8964 counting only the distinct ones).
The product of its (nonzero) digits is 28672, while the sum is 36.
The square root of 142078248 is about 11919.6580487865. The cubic root of 142078248 is about 521.8061551792.
The spelling of 142078248 in words is "one hundred forty-two million, seventy-eight thousand, two hundred forty-eight".
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