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276930680 = 235131731327
BaseRepresentation
bin10000100000011…
…010000001111000
3201022002112110212
4100200122001320
51031343240210
643251330252
76601605035
oct2040320170
9638075425
10276930680
11132358134
12788b0988
13454b1610
1428aca38c
15194a3805
hex1081a078

276930680 has 64 divisors (see below), whose sum is σ = 710519040. Its totient is φ = 96233472.

The previous prime is 276930679. The next prime is 276930713. The reversal of 276930680 is 86039672.

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, 6824 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (11101860).

Almost surely, 2276930680 is an apocalyptic number.

276930680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

276930680 is an abundant number, since it is smaller than the sum of its proper divisors (433588360).

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

276930680 is a wasteful number, since it uses less digits than its factorization.

276930680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31368 (or 31364 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 276930680 is about 16641.2343292197. The cubic root of 276930680 is about 651.8140097041.

The spelling of 276930680 in words is "two hundred seventy-six million, nine hundred thirty thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 17 20 26 34 40 52 65 68 85 104 130 136 170 221 260 340 442 520 680 884 1105 1768 2210 4420 8840 31327 62654 125308 156635 250616 313270 407251 532559 626540 814502 1065118 1253080 1629004 2036255 2130236 2662795 3258008 4072510 4260472 5325590 6923267 8145020 10651180 13846534 16290040 21302360 27693068 34616335 55386136 69232670 138465340 276930680