Search a number
-
+
1890214 = 21496343
BaseRepresentation
bin111001101011110100110
310120000212221
413031132212
5440441324
6104302554
722031554
oct7153646
93500787
101890214
111081167
12771a5a
13512491
14372bd4
152750e4
hex1cd7a6

1890214 has 8 divisors (see below), whose sum is σ = 2854800. Its totient is φ = 938616.

The previous prime is 1890211. The next prime is 1890221. The reversal of 1890214 is 4120981.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2874 + ... + 3469.

It is an arithmetic number, because the mean of its divisors is an integer number (356850).

21890214 is an apocalyptic number.

1890214 is a deficient number, since it is larger than the sum of its proper divisors (964586).

1890214 is a wasteful number, since it uses less digits than its factorization.

1890214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1890214 is about 1374.8505373312. The cubic root of 1890214 is about 123.6432252470.

It can be divided in two parts, 18902 and 14, that multiplied together give a triangular number (264628 = T727).

The spelling of 1890214 in words is "one million, eight hundred ninety thousand, two hundred fourteen".

Divisors: 1 2 149 298 6343 12686 945107 1890214