Base | Representation |
---|---|
bin | 1000010010001010010… |
… | …1101001100001010100 |
3 | 111121100010022012121200 |
4 | 2010202211221201110 |
5 | 4312424414344013 |
6 | 145213411312500 |
7 | 13165451605203 |
oct | 2044245514124 |
9 | 447303265550 |
10 | 142314215508 |
11 | 5539a734543 |
12 | 236b88ab730 |
13 | 1056017369a |
14 | 6c60b1b23a |
15 | 3a7de9ee73 |
hex | 2122969854 |
142314215508 has 18 divisors (see below), whose sum is σ = 359738711514. Its totient is φ = 47438071824.
The previous prime is 142314215419. The next prime is 142314215509. The reversal of 142314215508 is 805512413241.
142314215508 is a `hidden beast` number, since 1 + 4 + 2 + 3 + 142 + 1 + 5 + 508 = 666.
It can be written as a sum of positive squares in only one way, i.e., 142077732624 + 236482884 = 376932^2 + 15378^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3953172653 = 142314215508 / (1 + 4 + 2 + 3 + 1 + 4 + 2 + 1 + 5 + 5 + 0 + 8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142314215509) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1976586291 + ... + 1976586362.
It is an arithmetic number, because the mean of its divisors is an integer number (19985483973).
Almost surely, 2142314215508 is an apocalyptic number.
142314215508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
142314215508 is an abundant number, since it is smaller than the sum of its proper divisors (217424496006).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142314215508 is a wasteful number, since it uses less digits than its factorization.
142314215508 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3953172663 (or 3953172658 counting only the distinct ones).
The product of its (nonzero) digits is 38400, while the sum is 36.
Adding to 142314215508 its reverse (805512413241), we get a palindrome (947826628749).
The spelling of 142314215508 in words is "one hundred forty-two billion, three hundred fourteen million, two hundred fifteen thousand, five hundred eight".
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