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2080320804 = 2232176775021
BaseRepresentation
bin111101111111111…
…0010110100100100
312100222111020122200
41323333302310210
513230030231204
6542232254500
7102360302142
oct17377626444
95328436580
102080320804
119783178a1
124a0841430
13271cba773
1415a406592
15c297b539
hex7bff2d24

2080320804 has 72 divisors (see below), whose sum is σ = 5577252408. Its totient is φ = 651555840.

The previous prime is 2080320763. The next prime is 2080320817. The reversal of 2080320804 is 4080230802.

It can be written as a sum of positive squares in 4 ways, for example, as 1704038400 + 376282404 = 41280^2 + 19398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 411814 + ... + 416834.

It is an arithmetic number, because the mean of its divisors is an integer number (77461839).

Almost surely, 22080320804 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 2080320804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2788626204).

2080320804 is an abundant number, since it is smaller than the sum of its proper divisors (3496931604).

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

2080320804 is a wasteful number, since it uses less digits than its factorization.

2080320804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725 (or 5720 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2080320804 is about 45610.5339148754. The cubic root of 2080320804 is about 1276.5664824532.

The spelling of 2080320804 in words is "two billion, eighty million, three hundred twenty thousand, eight hundred four".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 153 204 306 612 677 1354 2031 2708 4062 5021 6093 8124 10042 11509 12186 15063 20084 23018 24372 30126 34527 45189 46036 60252 69054 85357 90378 103581 138108 170714 180756 207162 256071 341428 414324 512142 768213 1024284 1536426 3072852 3399217 6798434 10197651 13596868 20395302 30592953 40790604 57786689 61185906 115573378 122371812 173360067 231146756 346720134 520080201 693440268 1040160402 2080320804