Base | Representation |
---|---|
bin | 10000111110011… |
… | …10001011111110 |
3 | 100220221210020100 |
4 | 20133032023332 |
5 | 242423333202 |
6 | 22044101530 |
7 | 3346254030 |
oct | 1037161376 |
9 | 326853210 |
10 | 142402302 |
11 | 73422a59 |
12 | 3b8348a6 |
13 | 2366b923 |
14 | 14cabc50 |
15 | c77d41c |
hex | 87ce2fe |
142402302 has 96 divisors (see below), whose sum is σ = 393120000. Its totient is φ = 36267264.
The previous prime is 142402301. The next prime is 142402327. The reversal of 142402302 is 203204241.
It is a super-2 number, since 2×1424023022 = 40556831229798408, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142402301) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38949 + ... + 42447.
It is an arithmetic number, because the mean of its divisors is an integer number (4095000).
Almost surely, 2142402302 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 142402302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196560000).
142402302 is an abundant number, since it is smaller than the sum of its proper divisors (250717698).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142402302 is a wasteful number, since it uses less digits than its factorization.
142402302 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3550 (or 3547 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 142402302 is about 11933.2435657704. The cubic root of 142402302 is about 522.2025681418.
Adding to 142402302 its reverse (203204241), we get a palindrome (345606543).
The spelling of 142402302 in words is "one hundred forty-two million, four hundred two thousand, three hundred two".
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