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2056804280 = 23551420107
BaseRepresentation
bin111101010011000…
…0101011110111000
312022100020111001022
41322212011132320
513203020214110
6540032242012
7101653355636
oct17246053670
95270214038
102056804280
11966015553
124949a0308
1326a17586b
14157244356
15c0883755
hex7a9857b8

2056804280 has 16 divisors (see below), whose sum is σ = 4627809720. Its totient is φ = 822721696.

The previous prime is 2056804259. The next prime is 2056804289. The reversal of 2056804280 is 824086502.

It is a self number, because there is not a number n which added to its sum of digits gives 2056804280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056804289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25710014 + ... + 25710093.

Almost surely, 22056804280 is an apocalyptic number.

2056804280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2056804280 is an abundant number, since it is smaller than the sum of its proper divisors (2571005440).

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

2056804280 is a wasteful number, since it uses less digits than its factorization.

2056804280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51420118 (or 51420114 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 2056804280 is about 45352.0041453517. The cubic root of 2056804280 is about 1271.7380217431.

The spelling of 2056804280 in words is "two billion, fifty-six million, eight hundred four thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 51420107 102840214 205680428 257100535 411360856 514201070 1028402140 2056804280