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142630 = 2517839
BaseRepresentation
bin100010110100100110
321020122121
4202310212
514031010
63020154
71132555
oct426446
9236577
10142630
1198184
126a65a
134cbc7
1439d9c
152c3da
hex22d26

142630 has 16 divisors (see below), whose sum is σ = 272160. Its totient is φ = 53632.

The previous prime is 142619. The next prime is 142657. The reversal of 142630 is 36241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250 + ... + 589.

It is an arithmetic number, because the mean of its divisors is an integer number (17010).

2142630 is an apocalyptic number.

142630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142630 is a deficient number, since it is larger than the sum of its proper divisors (129530).

142630 is a wasteful number, since it uses less digits than its factorization.

142630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 142630 is about 377.6638717166. The cubic root of 142630 is about 52.2480749884.

Adding to 142630 its reverse (36241), we get a palindrome (178871).

The spelling of 142630 in words is "one hundred forty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 839 1678 4195 8390 14263 28526 71315 142630