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142994 = 2195371
BaseRepresentation
bin100010111010010010
321021011002
4202322102
514033434
63022002
71133615
oct427222
9237132
10142994
1198485
126a902
1350117
143a17c
152c57e
hex22e92

142994 has 16 divisors (see below), whose sum is σ = 233280. Its totient is φ = 65520.

The previous prime is 142993. The next prime is 143053. The reversal of 142994 is 499241.

It is not an unprimeable number, because it can be changed into a prime (142993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1979 + ... + 2049.

It is an arithmetic number, because the mean of its divisors is an integer number (14580).

2142994 is an apocalyptic number.

142994 is a deficient number, since it is larger than the sum of its proper divisors (90286).

142994 is a wasteful number, since it uses less digits than its factorization.

142994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its digits is 2592, while the sum is 29.

The square root of 142994 is about 378.1454746523. The cubic root of 142994 is about 52.2924839337.

The spelling of 142994 in words is "one hundred forty-two thousand, nine hundred ninety-four".

Divisors: 1 2 19 38 53 71 106 142 1007 1349 2014 2698 3763 7526 71497 142994