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6494035040 = 25540587719
BaseRepresentation
bin1100000110001001…
…10001110001100000
3121202120200011100022
412003010301301200
5101244433110130
62552221413012
7316633246523
oct60304616140
917676604308
106494035040
112832793709
121312a0a168
137c6542aac
14458690bba
152801c37e5
hex183131c60

6494035040 has 24 divisors (see below), whose sum is σ = 15342158160. Its totient is φ = 2597613952.

The previous prime is 6494035007. The next prime is 6494035063. The reversal of 6494035040 is 405304946.

It is a super-2 number, since 2×64940350402 = 84344982201495603200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20293700 + ... + 20294019.

It is an arithmetic number, because the mean of its divisors is an integer number (639256590).

Almost surely, 26494035040 is an apocalyptic number.

It is an amenable number.

6494035040 is an abundant number, since it is smaller than the sum of its proper divisors (8848123120).

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

6494035040 is a wasteful number, since it uses less digits than its factorization.

6494035040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40587734 (or 40587726 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6494035040 is about 80585.5758805507. The cubic root of 6494035040 is about 1865.6845247223.

Adding to 6494035040 its reverse (405304946), we get a palindrome (6899339986).

The spelling of 6494035040 in words is "six billion, four hundred ninety-four million, thirty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 40587719 81175438 162350876 202938595 324701752 405877190 649403504 811754380 1298807008 1623508760 3247017520 6494035040