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BaseRepresentation
bin11000101100010110
312010202000
4120230112
511214032
62100130
7600606
oct305426
9163660
10101142
1169a98
124a646
1337062
1428c06
151ee7c
hex18b16

101142 has 16 divisors (see below), whose sum is σ = 224880. Its totient is φ = 33696.

The previous prime is 101141. The next prime is 101149. The reversal of 101142 is 241101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101141) 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, 883 + ... + 990.

It is an arithmetic number, because the mean of its divisors is an integer number (14055).

2101142 is an apocalyptic number.

101142 is an abundant number, since it is smaller than the sum of its proper divisors (123738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101142 is a wasteful number, since it uses less digits than its factorization.

101142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884 (or 1878 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 101142 is about 318.0283006275. The cubic root of 101142 is about 46.5919097869.

Adding to 101142 its reverse (241101), we get a palindrome (342243).

It can be divided in two parts, 101 and 142, that added together give a 5-th power (243 = 35).

The spelling of 101142 in words is "one hundred one thousand, one hundred forty-two", and thus it is an iban number.