Base | Representation |
---|---|
bin | 10001000000110… |
… | …01110101110100 |
3 | 100221112112022022 |
4 | 20200121311310 |
5 | 243013242210 |
6 | 22054452312 |
7 | 3352014332 |
oct | 1040316564 |
9 | 327475268 |
10 | 142712180 |
11 | 73614856 |
12 | 3b964098 |
13 | 237499a0 |
14 | 14d4cb52 |
15 | c7e0155 |
hex | 8819d74 |
142712180 has 24 divisors (see below), whose sum is σ = 322749672. Its totient is φ = 52693632.
The previous prime is 142712177. The next prime is 142712183. The reversal of 142712180 is 81217241.
It is an interprime number because it is at equal distance from previous prime (142712177) and next prime (142712183).
It can be written as a sum of positive squares in 4 ways, for example, as 3519376 + 139192804 = 1876^2 + 11798^2 .
It is a Harshad number since it is a multiple of its sum of digits (26).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (142712183) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274187 + ... + 274706.
It is an arithmetic number, because the mean of its divisors is an integer number (13447903).
Almost surely, 2142712180 is an apocalyptic number.
142712180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
142712180 is an abundant number, since it is smaller than the sum of its proper divisors (180037492).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
142712180 is a wasteful number, since it uses less digits than its factorization.
142712180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 548915 (or 548913 counting only the distinct ones).
The product of its (nonzero) digits is 896, while the sum is 26.
The square root of 142712180 is about 11946.2203227632. The cubic root of 142712180 is about 522.5810775948.
The spelling of 142712180 in words is "one hundred forty-two million, seven hundred twelve thousand, one hundred eighty".
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