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142628 = 22181197
BaseRepresentation
bin100010110100100100
321020122112
4202310210
514031003
63020152
71132553
oct426444
9236575
10142628
1198182
126a658
134cbc5
1439d9a
152c3d8
hex22d24

142628 has 12 divisors (see below), whose sum is σ = 252252. Its totient is φ = 70560.

The previous prime is 142619. The next prime is 142657. The reversal of 142628 is 826241.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 73984 = 262^2 + 272^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142628.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 626 + ... + 822.

It is an arithmetic number, because the mean of its divisors is an integer number (21021).

2142628 is an apocalyptic number.

It is an amenable number.

142628 is a deficient number, since it is larger than the sum of its proper divisors (109624).

142628 is a wasteful number, since it uses less digits than its factorization.

142628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 380 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 142628 is about 377.6612238502. The cubic root of 142628 is about 52.2478307746.

Adding to 142628 its reverse (826241), we get a palindrome (968869).

The spelling of 142628 in words is "one hundred forty-two thousand, six hundred twenty-eight".

Divisors: 1 2 4 181 197 362 394 724 788 35657 71314 142628