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400608001 = 2944331183
BaseRepresentation
bin10111111000001…
…100101100000001
31000220210222212101
4113320030230001
51310023424001
6103430230401
712633053233
oct2770145401
91026728771
10400608001
111961507a2
12b21b5401
1364cc5271
143b2c2253
1525283a01
hex17e0cb01

400608001 has 8 divisors (see below), whose sum is σ = 415370880. Its totient is φ = 385908432.

The previous prime is 400607993. The next prime is 400608017. The reversal of 400608001 is 100806004.

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

It is a cyclic number.

It is not a de Polignac number, because 400608001 - 23 = 400607993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400608001.

It is not an unprimeable number, because it can be changed into a prime (400608101) 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, 2745 + ... + 28438.

It is an arithmetic number, because the mean of its divisors is an integer number (51921360).

Almost surely, 2400608001 is an apocalyptic number.

It is an amenable number.

400608001 is a deficient number, since it is larger than the sum of its proper divisors (14762879).

400608001 is a wasteful number, since it uses less digits than its factorization.

400608001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31655.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 400608001 is about 20015.1942533666. The cubic root of 400608001 is about 737.1794265465.

The spelling of 400608001 in words is "four hundred million, six hundred eight thousand, one".

Divisors: 1 29 443 12847 31183 904307 13814069 400608001