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676669830 = 235103218987
BaseRepresentation
bin101000010101010…
…010100110000110
31202011021101111120
4220111102212012
52341211413310
6151051214410
722524412224
oct5025224606
91664241446
10676669830
11317a65071
1216a747406
13aa261265
1465c23b14
153e614b70
hex28552986

676669830 has 32 divisors (see below), whose sum is σ = 1639782144. Its totient is φ = 178692576.

The previous prime is 676669813. The next prime is 676669859. The reversal of 676669830 is 38966676.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106404 + ... + 112583.

It is an arithmetic number, because the mean of its divisors is an integer number (51243192).

Almost surely, 2676669830 is an apocalyptic number.

676669830 is an abundant number, since it is smaller than the sum of its proper divisors (963112314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

676669830 is a wasteful number, since it uses less digits than its factorization.

676669830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219100.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The square root of 676669830 is about 26012.8781567900. The cubic root of 676669830 is about 877.9280758084.

The spelling of 676669830 in words is "six hundred seventy-six million, six hundred sixty-nine thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 103 206 309 515 618 1030 1545 3090 218987 437974 656961 1094935 1313922 2189870 3284805 6569610 22555661 45111322 67666983 112778305 135333966 225556610 338334915 676669830