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1890230 = 251711119
BaseRepresentation
bin111001101011110110110
310120000220112
413031132312
5440441410
6104303022
722031606
oct7153666
93500815
101890230
111081181
12771a72
135124a4
14372c06
15275105
hex1cd7b6

1890230 has 16 divisors (see below), whose sum is σ = 3602880. Its totient is φ = 711552.

The previous prime is 1890227. The next prime is 1890241. The reversal of 1890230 is 320981.

It is a junction number, because it is equal to n+sod(n) for n = 1890196 and 1890205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5390 + ... + 5729.

It is an arithmetic number, because the mean of its divisors is an integer number (225180).

21890230 is an apocalyptic number.

1890230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1890230 is a deficient number, since it is larger than the sum of its proper divisors (1712650).

1890230 is a wasteful number, since it uses less digits than its factorization.

1890230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11143.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1890230 is about 1374.8563561333. The cubic root of 1890230 is about 123.6435741116.

The spelling of 1890230 in words is "one million, eight hundred ninety thousand, two hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 11119 22238 55595 111190 189023 378046 945115 1890230