Search a number
-
+
133542 = 2332473
BaseRepresentation
bin100000100110100110
320210012000
4200212212
513233132
62510130
71064223
oct404646
9223160
10133542
1191372
1265346
1348a26
143694a
152987c
hex209a6

133542 has 16 divisors (see below), whose sum is σ = 296880. Its totient is φ = 44496.

The previous prime is 133541. The next prime is 133543. The reversal of 133542 is 245331.

It is an interprime number because it is at equal distance from previous prime (133541) and next prime (133543).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 1290.

It is an arithmetic number, because the mean of its divisors is an integer number (18555).

2133542 is an apocalyptic number.

133542 is an abundant number, since it is smaller than the sum of its proper divisors (163338).

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

133542 is a wasteful number, since it uses less digits than its factorization.

133542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484 (or 2478 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 133542 is about 365.4339885670. The cubic root of 133542 is about 51.1139321414.

Adding to 133542 its reverse (245331), we get a palindrome (378873).

The spelling of 133542 in words is "one hundred thirty-three thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 2473 4946 7419 14838 22257 44514 66771 133542