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1224930 = 235719307
BaseRepresentation
bin100101011000011100010
32022020021210
410223003202
5303144210
642130550
713261140
oct4530342
92266253
101224930
11767343
124b0a56
1333b715
1423c590
15192e20
hex12b0e2

1224930 has 64 divisors (see below), whose sum is σ = 3548160. Its totient is φ = 264384.

The previous prime is 1224919. The next prime is 1224943. The reversal of 1224930 is 394221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1224897 and 1224906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3837 + ... + 4143.

It is an arithmetic number, because the mean of its divisors is an integer number (55440).

21224930 is an apocalyptic number.

1224930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774080).

1224930 is an abundant number, since it is smaller than the sum of its proper divisors (2323230).

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

1224930 is a wasteful number, since it uses less digits than its factorization.

1224930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1224930 is about 1106.7655578306. The cubic root of 1224930 is about 106.9967099463.

It can be divided in two parts, 12 and 24930, that added together give a palindrome (24942).

The spelling of 1224930 in words is "one million, two hundred twenty-four thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 19 21 30 35 38 42 57 70 95 105 114 133 190 210 266 285 307 399 570 614 665 798 921 1330 1535 1842 1995 2149 3070 3990 4298 4605 5833 6447 9210 10745 11666 12894 17499 21490 29165 32235 34998 40831 58330 64470 81662 87495 122493 174990 204155 244986 408310 612465 1224930