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6461882401 = 13736809149
BaseRepresentation
bin1100000010010100…
…01000000000100001
3121200100011122012211
412001022020000201
5101213220214101
62545112322121
7316063044202
oct60112100041
917610148184
106461882401
112816622987
1213040a3341
137bc996070
144542c15a9
1527c471c51
hex181288021

6461882401 has 8 divisors (see below), whose sum is σ = 7054279400. Its totient is φ = 5883103872.

The previous prime is 6461882369. The next prime is 6461882417. The reversal of 6461882401 is 1042881646.

It can be written as a sum of positive squares in 4 ways, for example, as 37699600 + 6424182801 = 6140^2 + 80151^2 .

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

It is not a de Polignac number, because 6461882401 - 25 = 6461882369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6461882101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3403626 + ... + 3405523.

It is an arithmetic number, because the mean of its divisors is an integer number (881784925).

Almost surely, 26461882401 is an apocalyptic number.

It is an amenable number.

6461882401 is a deficient number, since it is larger than the sum of its proper divisors (592396999).

6461882401 is a wasteful number, since it uses less digits than its factorization.

6461882401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809235.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 6461882401 is about 80385.8345792342. The cubic root of 6461882401 is about 1862.6003634399.

The spelling of 6461882401 in words is "six billion, four hundred sixty-one million, eight hundred eighty-two thousand, four hundred one".

Divisors: 1 13 73 949 6809149 88518937 497067877 6461882401