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6461231 = 74147479
BaseRepresentation
bin11000101001011100101111
3110011021010212
4120221130233
53123224411
6350253035
7105630260
oct30513457
913137125
106461231
113713467
1221b717b
131452c1a
14c02967
1587968b
hex62972f

6461231 has 16 divisors (see below), whose sum is σ = 7741440. Its totient is φ = 5277120.

The previous prime is 6461219. The next prime is 6461233. The reversal of 6461231 is 1321646.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6461231 - 26 = 6461167 is a prime.

It is a super-2 number, since 2×64612312 = 83495012070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6461197 and 6461206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6461233) 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 15 ways as a sum of consecutive naturals, for example, 13250 + ... + 13728.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 26461231 is an apocalyptic number.

6461231 is a deficient number, since it is larger than the sum of its proper divisors (1280209).

6461231 is a wasteful number, since it uses less digits than its factorization.

6461231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574.

The product of its digits is 864, while the sum is 23.

The square root of 6461231 is about 2541.8951591283. The cubic root of 6461231 is about 186.2537773809.

Adding to 6461231 its reverse (1321646), we get a palindrome (7782877).

The spelling of 6461231 in words is "six million, four hundred sixty-one thousand, two hundred thirty-one".

Divisors: 1 7 41 47 287 329 479 1927 3353 13489 19639 22513 137473 157591 923033 6461231