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142923 = 3116171
BaseRepresentation
bin100010111001001011
321021001110
4202321023
514033143
63021403
71133454
oct427113
9237043
10142923
1198420
126a863
1350091
143a12b
152c533
hex22e4b

142923 has 16 divisors (see below), whose sum is σ = 214272. Its totient is φ = 84000.

The previous prime is 142907. The next prime is 142939. The reversal of 142923 is 329241.

142923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142907) and next prime (142939).

It is not a de Polignac number, because 142923 - 24 = 142907 is a prime.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 142923.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 142923.

It is not an unprimeable number, because it can be changed into a prime (142903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1978 + ... + 2048.

It is an arithmetic number, because the mean of its divisors is an integer number (13392).

2142923 is an apocalyptic number.

142923 is a deficient number, since it is larger than the sum of its proper divisors (71349).

142923 is a wasteful number, since it uses less digits than its factorization.

142923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its digits is 432, while the sum is 21.

The square root of 142923 is about 378.0515837819. The cubic root of 142923 is about 52.2838276707.

It can be divided in two parts, 1 and 42923, that added together give a palindrome (42924).

The spelling of 142923 in words is "one hundred forty-two thousand, nine hundred twenty-three".

Divisors: 1 3 11 33 61 71 183 213 671 781 2013 2343 4331 12993 47641 142923