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142936 = 23171051
BaseRepresentation
bin100010111001011000
321021001221
4202321120
514033221
63021424
71133503
oct427130
9237057
10142936
1198432
126a874
13500a1
143a13a
152c541
hex22e58

142936 has 16 divisors (see below), whose sum is σ = 284040. Its totient is φ = 67200.

The previous prime is 142907. The next prime is 142939. The reversal of 142936 is 639241.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 142936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142939) by changing a digit.

142936 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, 390 + ... + 661.

2142936 is an apocalyptic number.

It is an amenable number.

142936 is a deficient number, since it is larger than the sum of its proper divisors (141104).

142936 is a wasteful number, since it uses less digits than its factorization.

142936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1070 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 142936 is about 378.0687768118. The cubic root of 142936 is about 52.2854128346.

It can be divided in two parts, 14293 and 6, that multiplied together give a palindrome (85758).

The spelling of 142936 in words is "one hundred forty-two thousand, nine hundred thirty-six".