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12683790 = 234572237
BaseRepresentation
bin110000011000…
…101000001110
3212212101220000
4300120220032
511221340130
61131505130
7212544660
oct60305016
925771800
1012683790
117183579
1242b81a6
132821302
141982530
1511a8260
hexc18a0e

12683790 has 80 divisors (see below), whose sum is σ = 38994912. Its totient is φ = 2897856.

The previous prime is 12683789. The next prime is 12683807. The reversal of 12683790 is 9738621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4552 + ... + 6788.

Almost surely, 212683790 is an apocalyptic number.

12683790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12683790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19497456).

12683790 is an abundant number, since it is smaller than the sum of its proper divisors (26311122).

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

12683790 is a wasteful number, since it uses less digits than its factorization.

12683790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263 (or 2254 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12683790 is about 3561.4308922117. The cubic root of 12683790 is about 233.2113489373.

The spelling of 12683790 in words is "twelve million, six hundred eighty-three thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 270 315 378 405 567 630 810 945 1134 1890 2237 2835 4474 5670 6711 11185 13422 15659 20133 22370 31318 33555 40266 46977 60399 67110 78295 93954 100665 120798 140931 156590 181197 201330 234885 281862 301995 362394 422793 469770 603990 704655 845586 905985 1268379 1409310 1811970 2113965 2536758 4227930 6341895 12683790