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2028222648 = 233229971371
BaseRepresentation
bin111100011100100…
…0011100010111000
312020100110101102100
41320321003202320
513123211111043
6533131503400
7101155415364
oct17071034270
95210411370
102028222648
11950973771
124872b7b60
1326427935a
141535242a4
15bd0d9cd3
hex78e438b8

2028222648 has 48 divisors (see below), whose sum is σ = 5682526200. Its totient is φ = 652760640.

The previous prime is 2028222617. The next prime is 2028222653. The reversal of 2028222648 is 8462228202.

2028222648 is a `hidden beast` number, since 2 + 0 + 2 + 8 + 2 + 2 + 2 + 648 = 666.

It is a super-2 number, since 2×20282226482 = 8227374219720263808, which contains 22 as substring.

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

It is a congruent number.

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, 483598 + ... + 487773.

Almost surely, 22028222648 is an apocalyptic number.

It is an amenable number.

2028222648 is an abundant number, since it is smaller than the sum of its proper divisors (3654303552).

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

2028222648 is a wasteful number, since it uses less digits than its factorization.

2028222648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971412 (or 971405 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 2028222648 is about 45035.7929651516. The cubic root of 2028222648 is about 1265.8197747385.

It can be divided in two parts, 2028 and 222648, that added together give a square (224676 = 4742).

The spelling of 2028222648 in words is "two billion, twenty-eight million, two hundred twenty-two thousand, six hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 29 36 58 72 87 116 174 232 261 348 522 696 1044 2088 971371 1942742 2914113 3885484 5828226 7770968 8742339 11656452 17484678 23312904 28169759 34969356 56339518 69938712 84509277 112679036 169018554 225358072 253527831 338037108 507055662 676074216 1014111324 2028222648