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12807630 = 23251117761
BaseRepresentation
bin110000110110…
…110111001110
3220002200202200
4300312313032
511234321010
61134302330
7213602013
oct60666716
926080680
1012807630
117258620
1243579a6
1328657a4
1419b570a
1511cecc0
hexc36dce

12807630 has 96 divisors (see below), whose sum is σ = 38514528. Its totient is φ = 2918400.

The previous prime is 12807623. The next prime is 12807643. The reversal of 12807630 is 3670821.

12807630 = T1219 + T1220 + ... + T1235.

12807630 is a `hidden beast` number, since 1 + 28 + 0 + 7 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12807594 and 12807603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16450 + ... + 17210.

It is an arithmetic number, because the mean of its divisors is an integer number (401193).

Almost surely, 212807630 is an apocalyptic number.

12807630 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 12807630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19257264).

12807630 is an abundant number, since it is smaller than the sum of its proper divisors (25706898).

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

12807630 is a wasteful number, since it uses less digits than its factorization.

12807630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12807630 is about 3578.7749300564. The cubic root of 12807630 is about 233.9678895233.

The spelling of 12807630 in words is "twelve million, eight hundred seven thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 17 18 22 30 33 34 45 51 55 66 85 90 99 102 110 153 165 170 187 198 255 306 330 374 495 510 561 761 765 935 990 1122 1522 1530 1683 1870 2283 2805 3366 3805 4566 5610 6849 7610 8371 8415 11415 12937 13698 16742 16830 22830 25113 25874 34245 38811 41855 50226 64685 68490 75339 77622 83710 116433 125565 129370 142307 150678 194055 232866 251130 284614 376695 388110 426921 582165 711535 753390 853842 1164330 1280763 1423070 2134605 2561526 4269210 6403815 12807630