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142623 = 32132353
BaseRepresentation
bin100010110100011111
321020122100
4202310133
514030443
63020143
71132545
oct426437
9236570
10142623
1198178
126a653
134cbc0
1439d95
152c3d3
hex22d1f

142623 has 24 divisors (see below), whose sum is σ = 235872. Its totient is φ = 82368.

The previous prime is 142619. The next prime is 142657. The reversal of 142623 is 326241.

It is a happy number.

142623 is a `hidden beast` number, since 1 + 42 + 623 = 666.

It is not a de Polignac number, because 142623 - 22 = 142619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142596 and 142605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2665 + ... + 2717.

It is an arithmetic number, because the mean of its divisors is an integer number (9828).

2142623 is an apocalyptic number.

142623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

142623 is a deficient number, since it is larger than the sum of its proper divisors (93249).

142623 is a wasteful number, since it uses less digits than its factorization.

142623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 92 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 142623 is about 377.6546041027. The cubic root of 142623 is about 52.2472202302.

Adding to 142623 its reverse (326241), we get a palindrome (468864).

It can be divided in two parts, 1 and 42623, that added together give a palindrome (42624).

The spelling of 142623 in words is "one hundred forty-two thousand, six hundred twenty-three".

Divisors: 1 3 9 13 23 39 53 69 117 159 207 299 477 689 897 1219 2067 2691 3657 6201 10971 15847 47541 142623