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6497972 = 22132931139
BaseRepresentation
bin11000110010011010110100
3110020010112122
4120302122310
53130413342
6351135112
7106142345
oct30623264
913203478
106497972
113739028
122214498
131466870
14c120cc
158854d2
hex6326b4

6497972 has 48 divisors (see below), whose sum is σ = 13171200. Its totient is φ = 2782080.

The previous prime is 6497969. The next prime is 6497989. The reversal of 6497972 is 2797946.

It is a super-2 number, since 2×64979722 = 84447280225568, which contains 22 as substring.

Its product of digits (190512) is a multiple of the sum of its prime factors (216).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46679 + ... + 46817.

It is an arithmetic number, because the mean of its divisors is an integer number (274400).

Almost surely, 26497972 is an apocalyptic number.

6497972 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

6497972 is an abundant number, since it is smaller than the sum of its proper divisors (6673228).

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

6497972 is a wasteful number, since it uses less digits than its factorization.

6497972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 6497972 is about 2549.1120022471. The cubic root of 6497972 is about 186.6061467640.

The spelling of 6497972 in words is "six million, four hundred ninety-seven thousand, nine hundred seventy-two".

Divisors: 1 2 4 13 26 29 31 52 58 62 116 124 139 278 377 403 556 754 806 899 1508 1612 1798 1807 3596 3614 4031 4309 7228 8062 8618 11687 16124 17236 23374 46748 52403 56017 104806 112034 124961 209612 224068 249922 499844 1624493 3248986 6497972