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1399230 = 232572221
BaseRepresentation
bin101010101100110111110
32122002101100
411111212332
5324233410
645553530
714615250
oct5254676
92562340
101399230
11876298
125758a6
1339cb61
14285cd0
151c98c0
hex1559be

1399230 has 48 divisors (see below), whose sum is σ = 4159584. Its totient is φ = 319680.

The previous prime is 1399213. The next prime is 1399231. The reversal of 1399230 is 329931.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1399194 and 1399203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399231) 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 23 ways as a sum of consecutive naturals, for example, 481 + ... + 1740.

It is an arithmetic number, because the mean of its divisors is an integer number (86658).

21399230 is an apocalyptic number.

1399230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399230 is an abundant number, since it is smaller than the sum of its proper divisors (2760354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1399230 is a wasteful number, since it uses less digits than its factorization.

1399230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 1399230 is about 1182.8905274792. The cubic root of 1399230 is about 111.8483811497.

The spelling of 1399230 in words is "one million, three hundred ninety-nine thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 2221 4442 6663 11105 13326 15547 19989 22210 31094 33315 39978 46641 66630 77735 93282 99945 139923 155470 199890 233205 279846 466410 699615 1399230