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220869404 = 22756314011
BaseRepresentation
bin11010010101000…
…11001100011100
3120101121022212022
431022203030130
5423020310104
633525555312
75321234060
oct1512431434
9511538768
10220869404
111037474a8
1261b75b38
13369b3372
1421495aa0
15145ccbbe
hexd2a331c

220869404 has 24 divisors (see below), whose sum is σ = 442555008. Its totient is φ = 94483440.

The previous prime is 220869379. The next prime is 220869409. The reversal of 220869404 is 404968022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220869409) 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, 8759 + ... + 22769.

It is an arithmetic number, because the mean of its divisors is an integer number (18439792).

Almost surely, 2220869404 is an apocalyptic number.

It is an amenable number.

220869404 is an abundant number, since it is smaller than the sum of its proper divisors (221685604).

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

220869404 is a wasteful number, since it uses less digits than its factorization.

220869404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14585 (or 14583 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 220869404 is about 14861.6756794111. The cubic root of 220869404 is about 604.4752447250.

The spelling of 220869404 in words is "two hundred twenty million, eight hundred sixty-nine thousand, four hundred four".

Divisors: 1 2 4 7 14 28 563 1126 2252 3941 7882 14011 15764 28022 56044 98077 196154 392308 7888193 15776386 31552772 55217351 110434702 220869404