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1220414 = 21373643
BaseRepresentation
bin100101001111100111110
32022000002112
410221330332
5303023124
642054022
713242026
oct4517476
92260075
101220414
11763a08
124aa312
13339650
1423aa86
1519190e
hex129f3e

1220414 has 16 divisors (see below), whose sum is σ = 2001552. Its totient is φ = 554688.

The previous prime is 1220411. The next prime is 1220423. The reversal of 1220414 is 4140221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220411) 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 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 2219.

It is an arithmetic number, because the mean of its divisors is an integer number (125097).

21220414 is an apocalyptic number.

1220414 is a deficient number, since it is larger than the sum of its proper divisors (781138).

1220414 is a wasteful number, since it uses less digits than its factorization.

1220414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1220414 is about 1104.7234948167. The cubic root of 1220414 is about 106.8650582957.

Adding to 1220414 its reverse (4140221), we get a palindrome (5360635).

The spelling of 1220414 in words is "one million, two hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 13 26 73 146 643 949 1286 1898 8359 16718 46939 93878 610207 1220414