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676672865 = 51147673907
BaseRepresentation
bin101000010101010…
…011010101100001
31202011021112122222
4220111103111201
52341212012430
6151051240425
722524424121
oct5025232541
91664245588
10676672865
11317a67380
1216a749115
13aa26275b
1465c24c81
153e6159e5
hex28553561

676672865 has 32 divisors (see below), whose sum is σ = 918411264. Its totient is φ = 474344640.

The previous prime is 676672853. The next prime is 676672877. The reversal of 676672865 is 568276676.

It is an interprime number because it is at equal distance from previous prime (676672853) and next prime (676672877).

It is not a de Polignac number, because 676672865 - 28 = 676672609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 171242 + ... + 175148.

It is an arithmetic number, because the mean of its divisors is an integer number (28700352).

Almost surely, 2676672865 is an apocalyptic number.

It is an amenable number.

676672865 is a deficient number, since it is larger than the sum of its proper divisors (241738399).

676672865 is a wasteful number, since it uses less digits than its factorization.

676672865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037.

The product of its digits is 5080320, while the sum is 53.

The square root of 676672865 is about 26012.9364932143. The cubic root of 676672865 is about 877.9293883676.

The spelling of 676672865 in words is "six hundred seventy-six million, six hundred seventy-two thousand, eight hundred sixty-five".

Divisors: 1 5 11 47 55 67 235 335 517 737 2585 3149 3685 3907 15745 19535 34639 42977 173195 183629 214885 261769 918145 1308845 2019919 2879459 10099595 12303143 14397295 61515715 135334573 676672865