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7994001 = 331431999
BaseRepresentation
bin11110011111101010010001
3120001010201010
4132133222101
54021302001
6443201133
7124643061
oct36375221
916033633
107994001
114570014
1228161a9
13186b7a2
1410c13a1
15a7d8d6
hex79fa91

7994001 has 16 divisors (see below), whose sum is σ = 11264000. Its totient is φ = 5034960.

The previous prime is 7993987. The next prime is 7994017. The reversal of 7994001 is 1004997.

7994001 is a nontrivial binomial coefficient, being equal to C(3999, 2).

It is not a de Polignac number, because 7994001 - 211 = 7991953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7994001.

It is not an unprimeable number, because it can be changed into a prime (7994071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3000 + ... + 4998.

It is an arithmetic number, because the mean of its divisors is an integer number (704000).

Almost surely, 27994001 is an apocalyptic number.

7994001 is the 3998-th triangular number.

It is an amenable number.

7994001 is a deficient number, since it is larger than the sum of its proper divisors (3269999).

7994001 is a wasteful number, since it uses less digits than its factorization.

7994001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 7994001 is about 2827.3664424690. The cubic root of 7994001 is about 199.9499958323.

Adding to 7994001 its reverse (1004997), we get a palindrome (8998998).

The spelling of 7994001 in words is "seven million, nine hundred ninety-four thousand, one".

Divisors: 1 3 31 43 93 129 1333 1999 3999 5997 61969 85957 185907 257871 2664667 7994001