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6884988 = 22311431213
BaseRepresentation
bin11010010000111001111100
3110221210102120
4122100321330
53230304423
6403322540
7112343565
oct32207174
913853376
106884988
113982880
122380450
131570a76
14cb316c
1590eee3
hex690e7c

6884988 has 48 divisors (see below), whose sum is σ = 17947776. Its totient is φ = 2036160.

The previous prime is 6884971. The next prime is 6884989. The reversal of 6884988 is 8894886.

6884988 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 6884988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6884989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5070 + ... + 6282.

It is an arithmetic number, because the mean of its divisors is an integer number (373912).

Almost surely, 26884988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6884988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8973888).

6884988 is an abundant number, since it is smaller than the sum of its proper divisors (11062788).

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

6884988 is a wasteful number, since it uses less digits than its factorization.

6884988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274 (or 1272 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The square root of 6884988 is about 2623.9260660316. The cubic root of 6884988 is about 190.2396606373.

The spelling of 6884988 in words is "six million, eight hundred eighty-four thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 43 44 66 86 129 132 172 258 473 516 946 1213 1419 1892 2426 2838 3639 4852 5676 7278 13343 14556 26686 40029 52159 53372 80058 104318 156477 160116 208636 312954 573749 625908 1147498 1721247 2294996 3442494 6884988