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404222001 = 31301103567
BaseRepresentation
bin11000000101111…
…111000000110001
31001011121121100020
4120011333000301
51311440101001
6104035514053
713005554541
oct3005770061
91034547306
10404222001
11198199a77
12b3458929
136598c221
143b983321
1525749736
hex1817f031

404222001 has 8 divisors (see below), whose sum is σ = 539382144. Its totient is φ = 269271600.

The previous prime is 404221967. The next prime is 404222053. The reversal of 404222001 is 100222404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404222001 - 225 = 370667569 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (404222101) 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, 47881 + ... + 55686.

It is an arithmetic number, because the mean of its divisors is an integer number (67422768).

Almost surely, 2404222001 is an apocalyptic number.

It is an amenable number.

404222001 is a deficient number, since it is larger than the sum of its proper divisors (135160143).

404222001 is a wasteful number, since it uses less digits than its factorization.

404222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104871.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 404222001 is about 20105.2729650706. The cubic root of 404222001 is about 739.3895629299.

Adding to 404222001 its reverse (100222404), we get a palindrome (504444405).

The spelling of 404222001 in words is "four hundred four million, two hundred twenty-two thousand, one".

Divisors: 1 3 1301 3903 103567 310701 134740667 404222001