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143042 = 2371933
BaseRepresentation
bin100010111011000010
321021012212
4202323002
514034132
63022122
71134014
oct427302
9237185
10143042
1198519
126a942
1350153
143a1b4
152c5b2
hex22ec2

143042 has 8 divisors (see below), whose sum is σ = 220476. Its totient is φ = 69552.

The previous prime is 142993. The next prime is 143053. The reversal of 143042 is 240341.

It can be written as a sum of positive squares in 2 ways, for example, as 128881 + 14161 = 359^2 + 119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1430422 = 40922027528, which contains 22 as substring.

It is an unprimeable number.

143042 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 3 ways as a sum of consecutive naturals, for example, 893 + ... + 1040.

2143042 is an apocalyptic number.

143042 is a deficient number, since it is larger than the sum of its proper divisors (77434).

143042 is a wasteful number, since it uses less digits than its factorization.

143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 143042 is about 378.2089369647. The cubic root of 143042 is about 52.2983344319.

Adding to 143042 its reverse (240341), we get a palindrome (383383).

The spelling of 143042 in words is "one hundred forty-three thousand, forty-two", and thus it is an iban number.

Divisors: 1 2 37 74 1933 3866 71521 143042