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2980656 = 243272957
BaseRepresentation
bin1011010111101100110000
312121102200200
423113230300
51230340111
6143515200
734222650
oct13275460
95542620
102980656
111756458
12bb8b00
13804903
14578360
153dd256
hex2d7b30

2980656 has 60 divisors (see below), whose sum is σ = 9536592. Its totient is φ = 851328.

The previous prime is 2980583. The next prime is 2980669. The reversal of 2980656 is 6560892.

2980656 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

2980656 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2980656.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471 + ... + 2486.

22980656 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 2980656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4768296).

2980656 is an abundant number, since it is smaller than the sum of its proper divisors (6555936).

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

2980656 is a wasteful number, since it uses less digits than its factorization.

2980656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2978 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2980656 is about 1726.4576450061. The cubic root of 2980656 is about 143.9143008596.

The spelling of 2980656 in words is "two million, nine hundred eighty thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 168 252 336 504 1008 2957 5914 8871 11828 17742 20699 23656 26613 35484 41398 47312 53226 62097 70968 82796 106452 124194 141936 165592 186291 212904 248388 331184 372582 425808 496776 745164 993552 1490328 2980656