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331164327 = 31323369191
BaseRepresentation
bin10011101111010…
…010101010100111
3212002010220001110
4103233102222213
51134234224302
652510000103
711130564444
oct2357225247
9762126043
10331164327
1115aa2a72a
1292aa6033
13537bca30
1431da69cb
151e117b6c
hex13bd2aa7

331164327 has 16 divisors (see below), whose sum is σ = 496194048. Its totient is φ = 194932320.

The previous prime is 331164263. The next prime is 331164341. The reversal of 331164327 is 723461133.

It is not a de Polignac number, because 331164327 - 26 = 331164263 is a prime.

It is a super-2 number, since 2×3311643272 = 219339622954725858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331164294 and 331164303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331164347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183699 + ... + 185492.

It is an arithmetic number, because the mean of its divisors is an integer number (31012128).

Almost surely, 2331164327 is an apocalyptic number.

331164327 is a deficient number, since it is larger than the sum of its proper divisors (165029721).

331164327 is a wasteful number, since it uses less digits than its factorization.

331164327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369230.

The product of its digits is 9072, while the sum is 30.

The square root of 331164327 is about 18197.9209526803. The cubic root of 331164327 is about 691.8540955323.

The spelling of 331164327 in words is "three hundred thirty-one million, one hundred sixty-four thousand, three hundred twenty-seven".

Divisors: 1 3 13 23 39 69 299 897 369191 1107573 4799483 8491393 14398449 25474179 110388109 331164327