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2620080 = 243351213
BaseRepresentation
bin1001111111101010110000
311221010002000
421333222300
51132320310
6132054000
731161501
oct11775260
94833060
102620080
11152a561
12a64300
13709758
144c2ba8
1536b4c0
hex27fab0

2620080 has 80 divisors (see below), whose sum is σ = 9032160. Its totient is φ = 698112.

The previous prime is 2620073. The next prime is 2620087. The reversal of 2620080 is 800262.

It is an interprime number because it is at equal distance from previous prime (2620073) and next prime (2620087).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2620087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (112902).

22620080 is an apocalyptic number.

2620080 is a gapful number since it is divisible by the number (20) 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 2620080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4516080).

2620080 is an abundant number, since it is smaller than the sum of its proper divisors (6412080).

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

2620080 is a wasteful number, since it uses less digits than its factorization.

2620080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1223 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2620080 is about 1618.6661175178. Note that the first 3 decimals coincide. The cubic root of 2620080 is about 137.8599713826.

The spelling of 2620080 in words is "two million, six hundred twenty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 45 48 54 60 72 80 90 108 120 135 144 180 216 240 270 360 432 540 720 1080 1213 2160 2426 3639 4852 6065 7278 9704 10917 12130 14556 18195 19408 21834 24260 29112 32751 36390 43668 48520 54585 58224 65502 72780 87336 97040 109170 131004 145560 163755 174672 218340 262008 291120 327510 436680 524016 655020 873360 1310040 2620080