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2684768740 = 225303744201
BaseRepresentation
bin1010000000000110…
…0101000111100100
320221002212101100021
42200001211013210
520444300044430
61122223524524
7123350105053
oct24001450744
96832771307
102684768740
111158533545
1262b159744
1333a2b2a74
141b67ca39a
1510aa7707a
hexa00651e4

2684768740 has 24 divisors (see below), whose sum is σ = 5639998392. Its totient is φ = 1073529600.

The previous prime is 2684768693. The next prime is 2684768753. The reversal of 2684768740 is 478674862.

It can be written as a sum of positive squares in 4 ways, for example, as 277688896 + 2407079844 = 16664^2 + 49062^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38640 + ... + 82840.

It is an arithmetic number, because the mean of its divisors is an integer number (234999933).

Almost surely, 22684768740 is an apocalyptic number.

2684768740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2684768740 is an abundant number, since it is smaller than the sum of its proper divisors (2955229652).

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

2684768740 is a wasteful number, since it uses less digits than its factorization.

2684768740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47247 (or 47245 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The square root of 2684768740 is about 51814.7540764211. The cubic root of 2684768740 is about 1389.8532943868.

The spelling of 2684768740 in words is "two billion, six hundred eighty-four million, seven hundred sixty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 3037 6074 12148 15185 30370 44201 60740 88402 176804 221005 442010 884020 134238437 268476874 536953748 671192185 1342384370 2684768740