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671293331 = 17371067239
BaseRepresentation
bin101000000000110…
…001111110010011
31201210011020022222
4220000301332103
52333322341311
6150340051255
722430620262
oct5000617623
91653136288
10671293331
11314a22685
12168993b2b
13a90cacb7
14652245d9
153de01adb
hex28031f93

671293331 has 8 divisors (see below), whose sum is σ = 729992160. Its totient is φ = 614729088.

The previous prime is 671293321. The next prime is 671293373. The reversal of 671293331 is 133392176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 671293331 - 226 = 604184467 is a prime.

It is a super-2 number, since 2×6712933312 = 901269472490151122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 671293291 and 671293300.

It is not an unprimeable number, because it can be changed into a prime (671293321) 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 7 ways as a sum of consecutive naturals, for example, 532991 + ... + 534248.

It is an arithmetic number, because the mean of its divisors is an integer number (91249020).

Almost surely, 2671293331 is an apocalyptic number.

671293331 is a deficient number, since it is larger than the sum of its proper divisors (58698829).

671293331 is a wasteful number, since it uses less digits than its factorization.

671293331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067293.

The product of its digits is 20412, while the sum is 35.

The square root of 671293331 is about 25909.3290341529. The cubic root of 671293331 is about 875.5966894963.

The spelling of 671293331 in words is "six hundred seventy-one million, two hundred ninety-three thousand, three hundred thirty-one".

Divisors: 1 17 37 629 1067239 18143063 39487843 671293331