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404300220 = 22356738337
BaseRepresentation
bin11000000110010…
…010000110111100
31001011202120122020
4120012102012330
51312000101340
6104041320140
713006331562
oct3006220674
91034676566
10404300220
11198242815
12b3496050
13659b89cc
143b9a3a32
15257629d0
hex181921bc

404300220 has 24 divisors (see below), whose sum is σ = 1132040784. Its totient is φ = 107813376.

The previous prime is 404300219. The next prime is 404300257. The reversal of 404300220 is 22003404.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 404300220.

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, 3369109 + ... + 3369228.

It is an arithmetic number, because the mean of its divisors is an integer number (47168366).

Almost surely, 2404300220 is an apocalyptic number.

It is an amenable number.

404300220 is an abundant number, since it is smaller than the sum of its proper divisors (727740564).

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

404300220 is a wasteful number, since it uses less digits than its factorization.

404300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738349 (or 6738347 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 404300220 is about 20107.2181069386. The cubic root of 404300220 is about 739.4372517264.

Adding to 404300220 its reverse (22003404), we get a palindrome (426303624).

The spelling of 404300220 in words is "four hundred four million, three hundred thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 6738337 13476674 20215011 26953348 33691685 40430022 67383370 80860044 101075055 134766740 202150110 404300220