Base | Representation |
---|---|
bin | 10101000011111011110 |
3 | 1022001200211 |
4 | 2220133132 |
5 | 134041032 |
6 | 22443034 |
7 | 5603035 |
oct | 2503736 |
9 | 1261624 |
10 | 690142 |
11 | 431572 |
12 | 29347a |
13 | 1b218b |
14 | 13d71c |
15 | d9747 |
hex | a87de |
690142 has 16 divisors (see below), whose sum is σ = 1092240. Its totient is φ = 326592.
The previous prime is 690139. The next prime is 690143. The reversal of 690142 is 241096.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (690143) 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, 4153 + ... + 4315.
It is an arithmetic number, because the mean of its divisors is an integer number (68265).
2690142 is an apocalyptic number.
690142 is a deficient number, since it is larger than the sum of its proper divisors (402098).
690142 is a wasteful number, since it uses less digits than its factorization.
690142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 267.
The product of its (nonzero) digits is 432, while the sum is 22.
The square root of 690142 is about 830.7478558504. The cubic root of 690142 is about 88.3716206002.
The spelling of 690142 in words is "six hundred ninety thousand, one hundred forty-two".
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