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142850 = 2522857
BaseRepresentation
bin100010111000000010
321020221202
4202320002
514032400
63021202
71133321
oct427002
9236852
10142850
1198364
126a802
1350036
143a0b8
152c4d5
hex22e02

142850 has 12 divisors (see below), whose sum is σ = 265794. Its totient is φ = 57120.

The previous prime is 142841. The next prime is 142867. The reversal of 142850 is 58241.

It can be written as a sum of positive squares in 3 ways, for example, as 116281 + 26569 = 341^2 + 163^2 .

It is a super-2 number, since 2×1428502 = 40812245000, which contains 22 as substring.

It is an unprimeable number.

142850 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1379 + ... + 1478.

2142850 is an apocalyptic number.

142850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142850 is a deficient number, since it is larger than the sum of its proper divisors (122944).

142850 is a wasteful number, since it uses less digits than its factorization.

142850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869 (or 2864 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 142850 is about 377.9550237793. The cubic root of 142850 is about 52.2749245797.

The spelling of 142850 in words is "one hundred forty-two thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 2857 5714 14285 28570 71425 142850