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676143855 = 38520611
BaseRepresentation
bin101000010011010…
…010001011101111
31202010021200000000
4220103102023233
52341043100410
6151032035343
722520061612
oct5023221357
91663250000
10676143855
11317735982
1216a532b53
13aa108a2a
1465b28179
153e55ddc0
hex284d22ef

676143855 has 36 divisors (see below), whose sum is σ = 1217056152. Its totient is φ = 360592560.

The previous prime is 676143847. The next prime is 676143859. The reversal of 676143855 is 558341676.

676143855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 676143855 - 23 = 676143847 is a prime.

It is a super-2 number, since 2×6761438552 = 914341025308522050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 676143855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676143859) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 22500 + ... + 43110.

Almost surely, 2676143855 is an apocalyptic number.

676143855 is a deficient number, since it is larger than the sum of its proper divisors (540912297).

676143855 is an frugal number, since it uses more digits than its factorization.

676143855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20640 (or 20619 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 676143855 is about 26002.7662951464. The cubic root of 676143855 is about 877.7005458793.

The spelling of 676143855 in words is "six hundred seventy-six million, one hundred forty-three thousand, eight hundred fifty-five".

Divisors: 1 3 5 9 15 27 45 81 135 243 405 729 1215 2187 3645 6561 10935 20611 32805 61833 103055 185499 309165 556497 927495 1669491 2782485 5008473 8347455 15025419 25042365 45076257 75127095 135228771 225381285 676143855