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103142 = 2133967
BaseRepresentation
bin11001001011100110
312020111002
4121023212
511300032
62113302
7606464
oct311346
9166432
10103142
1170546
124b832
1337c40
1429834
1520862
hex192e6

103142 has 8 divisors (see below), whose sum is σ = 166656. Its totient is φ = 47592.

The previous prime is 103141. The next prime is 103171. The reversal of 103142 is 241301.

Adding to 103142 its reverse (241301), we get a palindrome (344443).

It is a happy number.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 103142.

It is not an unprimeable number, because it can be changed into a prime (103141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958 + ... + 2009.

It is an arithmetic number, because the mean of its divisors is an integer number (20832).

2103142 is an apocalyptic number.

103142 is a deficient number, since it is larger than the sum of its proper divisors (63514).

103142 is a wasteful number, since it uses less digits than its factorization.

103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 103142 is about 321.1572823400. The cubic root of 103142 is about 46.8970130682.

The spelling of 103142 in words is "one hundred three thousand, one hundred forty-two", and thus it is an iban number.

Divisors: 1 2 13 26 3967 7934 51571 103142