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6989448 = 2331737463
BaseRepresentation
bin11010101010011010001000
3111011002201110
4122222122020
53242130243
6405450320
7113260254
oct32523210
914132643
106989448
113a44304
1224109a0
1315a948b
14cdd264
15930e33
hex6aa688

6989448 has 64 divisors (see below), whose sum is σ = 19042560. Its totient is φ = 2128896.

The previous prime is 6989443. The next prime is 6989449. The reversal of 6989448 is 8449896.

It is a junction number, because it is equal to n+sod(n) for n = 6989397 and 6989406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6989443) 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, 14865 + ... + 15327.

It is an arithmetic number, because the mean of its divisors is an integer number (297540).

Almost surely, 26989448 is an apocalyptic number.

6989448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6989448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9521280).

6989448 is an abundant number, since it is smaller than the sum of its proper divisors (12053112).

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

6989448 is a wasteful number, since it uses less digits than its factorization.

6989448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526 (or 522 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 6989448 is about 2643.7564184319. The cubic root of 6989448 is about 191.1969497013.

The spelling of 6989448 in words is "six million, nine hundred eighty-nine thousand, four hundred forty-eight".

Divisors: 1 2 3 4 6 8 12 17 24 34 37 51 68 74 102 111 136 148 204 222 296 408 444 463 629 888 926 1258 1389 1852 1887 2516 2778 3704 3774 5032 5556 7548 7871 11112 15096 15742 17131 23613 31484 34262 47226 51393 62968 68524 94452 102786 137048 188904 205572 291227 411144 582454 873681 1164908 1747362 2329816 3494724 6989448