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12998370 = 23571117331
BaseRepresentation
bin110001100101…
…011011100010
3220110101102010
4301211123202
511311421440
61142333350
7215325060
oct61453342
926411363
1012998370
117378960
12442a256
132901558
141a25030
15121b580
hexc656e2

12998370 has 128 divisors (see below), whose sum is σ = 41306112. Its totient is φ = 2534400.

The previous prime is 12998369. The next prime is 12998383. The reversal of 12998370 is 7389921.

12998370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39105 + ... + 39435.

It is an arithmetic number, because the mean of its divisors is an integer number (322704).

Almost surely, 212998370 is an apocalyptic number.

12998370 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 12998370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20653056).

12998370 is an abundant number, since it is smaller than the sum of its proper divisors (28307742).

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

12998370 is a wasteful number, since it uses less digits than its factorization.

12998370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 12998370 is about 3605.3252280481. The cubic root of 12998370 is about 235.1236409881.

It can be divided in two parts, 1299 and 8370, that added together give a palindrome (9669).

The spelling of 12998370 in words is "twelve million, nine hundred ninety-eight thousand, three hundred seventy".

Divisors: 1 2 3 5 6 7 10 11 14 15 17 21 22 30 33 34 35 42 51 55 66 70 77 85 102 105 110 119 154 165 170 187 210 231 238 255 330 331 357 374 385 462 510 561 595 662 714 770 935 993 1122 1155 1190 1309 1655 1785 1870 1986 2310 2317 2618 2805 3310 3570 3641 3927 4634 4965 5610 5627 6545 6951 7282 7854 9930 10923 11254 11585 13090 13902 16881 18205 19635 21846 23170 25487 28135 33762 34755 36410 39270 39389 50974 54615 56270 61897 69510 76461 78778 84405 109230 118167 123794 127435 152922 168810 185691 196945 236334 254870 309485 371382 382305 393890 433279 590835 618970 764610 866558 928455 1181670 1299837 1856910 2166395 2599674 4332790 6499185 12998370