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1929142 = 2964571
BaseRepresentation
bin111010110111110110110
310122000021201
413112332312
5443213032
6105203114
722253215
oct7267666
93560251
101929142
1110a8436
1279049a
13527107
1438307c
152818e7
hex1d6fb6

1929142 has 4 divisors (see below), whose sum is σ = 2893716. Its totient is φ = 964570.

The previous prime is 1929121. The next prime is 1929149. The reversal of 1929142 is 2419291.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1929142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1929149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482284 + ... + 482287.

It is an arithmetic number, because the mean of its divisors is an integer number (723429).

21929142 is an apocalyptic number.

1929142 is a deficient number, since it is larger than the sum of its proper divisors (964574).

1929142 is an equidigital number, since it uses as much as digits as its factorization.

1929142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964573.

The product of its digits is 1296, while the sum is 28.

The square root of 1929142 is about 1388.9355636602. The cubic root of 1929142 is about 124.4862540804.

It can be divided in two parts, 19 and 29142, that added together give a triangular number (29161 = T241).

The spelling of 1929142 in words is "one million, nine hundred twenty-nine thousand, one hundred forty-two".

Divisors: 1 2 964571 1929142