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6485401 = 132771801
BaseRepresentation
bin11000101111010110011001
3110012111022001
4120233112121
53130013101
6351001001
7106060606
oct30572631
913174261
106485401
11372a63a
122209161
131460c20
14c0b6ad
15881901
hex62f599

6485401 has 8 divisors (see below), whose sum is σ = 7013384. Its totient is φ = 5961600.

The previous prime is 6485387. The next prime is 6485407. The reversal of 6485401 is 1045846.

It can be divided in two parts, 6485 and 401, that added together give a palindrome (6886).

6485401 is a nontrivial binomial coefficient, being equal to C(3602, 2).

It can be written as a sum of positive squares in 4 ways, for example, as 230400 + 6255001 = 480^2 + 2501^2 .

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 6485401 - 29 = 6484889 is a prime.

It is a super-2 number, since 2×64854012 = 84120852261602, which contains 22 as substring.

It is a Duffinian number.

6485401 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6485401.

It is not an unprimeable number, because it can be changed into a prime (6485407) 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, 2701 + ... + 4501.

It is an arithmetic number, because the mean of its divisors is an integer number (876673).

Almost surely, 26485401 is an apocalyptic number.

6485401 is the 3601-st triangular number and also the 1801-st hexagonal number.

6485401 is the 1201-st centered nonagonal number.

It is an amenable number.

6485401 is a deficient number, since it is larger than the sum of its proper divisors (527983).

6485401 is a wasteful number, since it uses less digits than its factorization.

6485401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 6485401 is about 2546.6450479013. The cubic root of 6485401 is about 186.4857327719.

The spelling of 6485401 in words is "six million, four hundred eighty-five thousand, four hundred one".

Divisors: 1 13 277 1801 3601 23413 498877 6485401