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404214400 = 2752126317
BaseRepresentation
bin11000000101111…
…101001010000000
31001011121012220201
4120011331022000
51311434330100
6104035414544
713005523432
oct3005751200
91034535821
10404214400
11198194297
12b3454454
1365988925
143b980652
152574736a
hex1817d280

404214400 has 48 divisors (see below), whose sum is σ = 998543790. Its totient is φ = 161684480.

The previous prime is 404214361. The next prime is 404214427. The reversal of 404214400 is 4412404.

It can be written as a sum of positive squares in 3 ways, for example, as 205291584 + 198922816 = 14328^2 + 14104^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59959 + ... + 66358.

Almost surely, 2404214400 is an apocalyptic number.

404214400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404214400 is an abundant number, since it is smaller than the sum of its proper divisors (594329390).

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

404214400 is a wasteful number, since it uses less digits than its factorization.

404214400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126341 (or 126324 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 404214400 is about 20105.0839341695. The cubic root of 404214400 is about 739.3849284013.

Adding to 404214400 its reverse (4412404), we get a palindrome (408626804).

The spelling of 404214400 in words is "four hundred four million, two hundred fourteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 128 160 200 320 400 640 800 1600 3200 126317 252634 505268 631585 1010536 1263170 2021072 2526340 3157925 4042144 5052680 6315850 8084288 10105360 12631700 16168576 20210720 25263400 40421440 50526800 80842880 101053600 202107200 404214400