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6550680872 = 236071348987
BaseRepresentation
bin1100001100111001…
…10111010100101000
3121220112021001211002
412012130313110220
5101403433241442
63002003454132
7321221603651
oct60634672450
917815231732
106550680872
11286176354a
121329987348
138051b7138
14461dd8528
15285162732
hex186737528

6550680872 has 16 divisors (see below), whose sum is σ = 12302770560. Its totient is φ = 3269942064.

The previous prime is 6550680847. The next prime is 6550680889. The reversal of 6550680872 is 2780860556.

It is a super-2 number, since 2×65506808722 = 85822839773573360768, which contains 22 as substring.

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, 669638 + ... + 679349.

It is an arithmetic number, because the mean of its divisors is an integer number (768923160).

Almost surely, 26550680872 is an apocalyptic number.

It is an amenable number.

6550680872 is a deficient number, since it is larger than the sum of its proper divisors (5752089688).

6550680872 is a wasteful number, since it uses less digits than its factorization.

6550680872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349600 (or 1349596 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 6550680872 is about 80936.2766131480. The cubic root of 6550680872 is about 1871.0934602140.

The spelling of 6550680872 in words is "six billion, five hundred fifty million, six hundred eighty thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 607 1214 2428 4856 1348987 2697974 5395948 10791896 818835109 1637670218 3275340436 6550680872