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1225230 = 23540841
BaseRepresentation
bin100101011001000001110
32022020200220
410223020032
5303201410
642132210
713262046
oct4531016
92266626
101225230
11767596
124b1066
1333b8b6
1423c726
15193070
hex12b20e

1225230 has 16 divisors (see below), whose sum is σ = 2940624. Its totient is φ = 326720.

The previous prime is 1225223. The next prime is 1225261. The reversal of 1225230 is 325221.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 20391 + ... + 20450.

It is an arithmetic number, because the mean of its divisors is an integer number (183789).

21225230 is an apocalyptic number.

1225230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225230 is an abundant number, since it is smaller than the sum of its proper divisors (1715394).

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

1225230 is a wasteful number, since it uses less digits than its factorization.

1225230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40851.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1225230 is about 1106.9010795911. The cubic root of 1225230 is about 107.0054441577.

Subtracting from 1225230 its reverse (325221), we obtain a palindrome (900009).

The spelling of 1225230 in words is "one million, two hundred twenty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 40841 81682 122523 204205 245046 408410 612615 1225230