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142452 = 22331319
BaseRepresentation
bin100010110001110100
321020102000
4202301310
514024302
63015300
71132212
oct426164
9236360
10142452
1198032
126a530
134cabb
1439cb2
152c31c
hex22c74

142452 has 24 divisors (see below), whose sum is σ = 369600. Its totient is φ = 47448.

The previous prime is 142433. The next prime is 142453. The reversal of 142452 is 254241.

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 (142453) by changing a digit.

142452 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 7 ways as a sum of consecutive naturals, for example, 552 + ... + 767.

It is an arithmetic number, because the mean of its divisors is an integer number (15400).

2142452 is an apocalyptic number.

142452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142452 is an abundant number, since it is smaller than the sum of its proper divisors (227148).

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

142452 is a wasteful number, since it uses less digits than its factorization.

142452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1324 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 142452 is about 377.4281388556. The cubic root of 142452 is about 52.2263310148.

Adding to 142452 its reverse (254241), we get a palindrome (396693).

The spelling of 142452 in words is "one hundred forty-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1319 2638 3957 5276 7914 11871 15828 23742 35613 47484 71226 142452