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6868330 = 2572107131
BaseRepresentation
bin11010001100110101101010
3110220221120121
4122030311222
53224241310
6403113454
7112244200
oct32146552
913827517
106868330
113971307
12237288a
131566301
14cab070
1590a0da
hex68cd6a

6868330 has 48 divisors (see below), whose sum is σ = 14626656. Its totient is φ = 2315040.

The previous prime is 6868319. The next prime is 6868363. The reversal of 6868330 is 338686.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52365 + ... + 52495.

It is an arithmetic number, because the mean of its divisors is an integer number (304722).

Almost surely, 26868330 is an apocalyptic number.

6868330 is the 2140-th pentagonal number.

6868330 is an abundant number, since it is smaller than the sum of its proper divisors (7758326).

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

6868330 is a wasteful number, since it uses less digits than its factorization.

6868330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 6868330 is about 2620.7498926834. The cubic root of 6868330 is about 190.0861105521.

The spelling of 6868330 in words is "six million, eight hundred sixty-eight thousand, three hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 107 131 214 245 262 490 535 655 749 917 1070 1310 1498 1834 3745 4585 5243 6419 7490 9170 10486 12838 14017 26215 28034 32095 52430 64190 70085 98119 140170 196238 490595 686833 981190 1373666 3434165 6868330