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1238230 = 2573192
BaseRepresentation
bin100101110010011010110
32022220112101
410232103112
5304110410
642312314
713345000
oct4562326
92286471
101238230
11776334
124b869a
133447a6
14243370
15196d3a
hex12e4d6

1238230 has 48 divisors (see below), whose sum is σ = 2743200. Its totient is φ = 402192.

The previous prime is 1238219. The next prime is 1238267. The reversal of 1238230 is 328321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1238198 and 1238207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65161 + ... + 65179.

It is an arithmetic number, because the mean of its divisors is an integer number (57150).

21238230 is an apocalyptic number.

1238230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1238230 is an abundant number, since it is smaller than the sum of its proper divisors (1504970).

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

1238230 is an equidigital number, since it uses as much as digits as its factorization.

1238230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 33 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1238230 is about 1112.7578352903. The cubic root of 1238230 is about 107.3825651065.

Multiplying 1238230 by its sum of digits (19), we get a triangular number (23526370 = T6859).

Subtracting from 1238230 its reverse (328321), we obtain a palindrome (909909).

The spelling of 1238230 in words is "one million, two hundred thirty-eight thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 49 70 95 98 133 190 245 266 343 361 490 665 686 722 931 1330 1715 1805 1862 2527 3430 3610 4655 5054 6517 9310 12635 13034 17689 25270 32585 35378 65170 88445 123823 176890 247646 619115 1238230