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6980904 = 2338719
BaseRepresentation
bin11010101000010100101000
3111010200000000
4122220110220
53241342104
6405343000
7113223330
oct32502450
914120000
106980904
113a38947
122407a60
1315a5618
14cda0c0
1592d639
hex6a8528

6980904 has 144 divisors (see below), whose sum is σ = 23618400. Its totient is φ = 1889568.

The previous prime is 6980903. The next prime is 6980927. The reversal of 6980904 is 4090896.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6980903) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 367407 + ... + 367425.

Almost surely, 26980904 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 6980904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11809200).

6980904 is an abundant number, since it is smaller than the sum of its proper divisors (16637496).

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

6980904 is an equidigital number, since it uses as much as digits as its factorization.

6980904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6980904 is about 2642.1400417086. The cubic root of 6980904 is about 191.1190106504.

The spelling of 6980904 in words is "six million, nine hundred eighty thousand, nine hundred four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 19 21 24 27 28 36 38 42 54 56 57 63 72 76 81 84 108 114 126 133 152 162 168 171 189 216 228 243 252 266 324 342 378 399 456 486 504 513 532 567 648 684 729 756 798 972 1026 1064 1134 1197 1368 1458 1512 1539 1596 1701 1944 2052 2187 2268 2394 2916 3078 3192 3402 3591 4104 4374 4536 4617 4788 5103 5832 6156 6561 6804 7182 8748 9234 9576 10206 10773 12312 13122 13608 13851 14364 15309 17496 18468 20412 21546 26244 27702 28728 30618 32319 36936 40824 41553 43092 45927 52488 55404 61236 64638 83106 86184 91854 96957 110808 122472 124659 129276 166212 183708 193914 249318 258552 290871 332424 367416 387828 498636 581742 775656 872613 997272 1163484 1745226 2326968 3490452 6980904