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6364040 = 235389409
BaseRepresentation
bin11000010001101110001000
3102222022211012
4120101232020
53112122130
6344223052
7105044024
oct30215610
912868735
106364040
113657441
12216aa88
13141a907
14bb9384
1585a995
hex611b88

6364040 has 32 divisors (see below), whose sum is σ = 14391000. Its totient is φ = 2532864.

The previous prime is 6364019. The next prime is 6364049. The reversal of 6364040 is 404636.

It can be written as a sum of positive squares in 4 ways, for example, as 5579044 + 784996 = 2362^2 + 886^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6363997 and 6364015.

It is not an unprimeable number, because it can be changed into a prime (6364049) 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, 15356 + ... + 15764.

Almost surely, 26364040 is an apocalyptic number.

It is an amenable number.

6364040 is an abundant number, since it is smaller than the sum of its proper divisors (8026960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6364040 is a wasteful number, since it uses less digits than its factorization.

6364040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 6364040 is about 2522.7048975257. The cubic root of 6364040 is about 185.3151676667.

Adding to 6364040 its reverse (404636), we get a palindrome (6768676).

The spelling of 6364040 in words is "six million, three hundred sixty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 389 409 778 818 1556 1636 1945 2045 3112 3272 3890 4090 7780 8180 15560 16360 159101 318202 636404 795505 1272808 1591010 3182020 6364040