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676381 = 1997367
BaseRepresentation
bin10100101001000011101
31021100211011
42211020131
5133121011
622255221
75514646
oct2451035
91240734
10676381
114221a2
12287511
131a8b34
141386cd
15d5621
hexa521d

676381 has 8 divisors (see below), whose sum is σ = 721280. Its totient is φ = 632448.

The previous prime is 676373. The next prime is 676387. The reversal of 676381 is 183676.

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 676381 - 23 = 676373 is a prime.

It is a super-2 number, since 2×6763812 = 914982514322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660 + ... + 2026.

It is an arithmetic number, because the mean of its divisors is an integer number (90160).

2676381 is an apocalyptic number.

It is an amenable number.

676381 is a deficient number, since it is larger than the sum of its proper divisors (44899).

676381 is a wasteful number, since it uses less digits than its factorization.

676381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483.

The product of its digits is 6048, while the sum is 31.

The square root of 676381 is about 822.4238566579. The cubic root of 676381 is about 87.7803146317.

The spelling of 676381 in words is "six hundred seventy-six thousand, three hundred eighty-one".

Divisors: 1 19 97 367 1843 6973 35599 676381