Search a number
-
+
1928073 = 3791813
BaseRepresentation
bin111010110101110001001
310121221211010
413112232021
5443144243
6105154133
722250130
oct7265611
93557733
101928073
1110a7654
1278b949
13526794
14382917
15281433
hex1d6b89

1928073 has 8 divisors (see below), whose sum is σ = 2938048. Its totient is φ = 1101744.

The previous prime is 1928071. The next prime is 1928093. The reversal of 1928073 is 3708291.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1928073 - 21 = 1928071 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1928073.

It is not an unprimeable number, because it can be changed into a prime (1928071) 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, 45886 + ... + 45927.

It is an arithmetic number, because the mean of its divisors is an integer number (367256).

21928073 is an apocalyptic number.

It is an amenable number.

1928073 is a deficient number, since it is larger than the sum of its proper divisors (1009975).

1928073 is an equidigital number, since it uses as much as digits as its factorization.

1928073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91823.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 1928073 is about 1388.5506832665. The cubic root of 1928073 is about 124.4632558781.

The spelling of 1928073 in words is "one million, nine hundred twenty-eight thousand, seventy-three".

Divisors: 1 3 7 21 91813 275439 642691 1928073