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13992930 = 23257219167
BaseRepresentation
bin110101011000…
…001111100010
3222022220200200
4311120033202
512040233210
61215530030
7226636500
oct65301742
928286620
1013992930
117998106
124829916
132b8c153
141c03670
1513660c0
hexd583e2

13992930 has 144 divisors (see below), whose sum is σ = 44815680. Its totient is φ = 3011904.

The previous prime is 13992907. The next prime is 13992941. The reversal of 13992930 is 3929931.

13992930 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13992930 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 83707 + ... + 83873.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 213992930 is an apocalyptic number.

13992930 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 13992930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22407840).

13992930 is an abundant number, since it is smaller than the sum of its proper divisors (30822750).

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

13992930 is a wasteful number, since it uses less digits than its factorization.

13992930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 13992930 is about 3740.7124989766. The cubic root of 13992930 is about 240.9736488581.

The spelling of 13992930 in words is "thirteen million, nine hundred ninety-two thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 19 21 30 35 38 42 45 49 57 63 70 90 95 98 105 114 126 133 147 167 171 190 210 245 266 285 294 315 334 342 399 441 490 501 570 630 665 735 798 835 855 882 931 1002 1169 1197 1330 1470 1503 1670 1710 1862 1995 2205 2338 2394 2505 2793 3006 3173 3507 3990 4410 4655 5010 5586 5845 5985 6346 7014 7515 8183 8379 9310 9519 10521 11690 11970 13965 15030 15865 16366 16758 17535 19038 21042 22211 24549 27930 28557 31730 35070 40915 41895 44422 47595 49098 52605 57114 66633 73647 81830 83790 95190 105210 111055 122745 133266 142785 147294 155477 199899 222110 245490 285570 310954 333165 368235 399798 466431 666330 736470 777385 932862 999495 1399293 1554770 1998990 2332155 2798586 4664310 6996465 13992930