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1340768180 = 225221330293
BaseRepresentation
bin100111111101010…
…0111111110110100
310110102220002011202
41033322213332310
510221214040210
6341013152032
745140225063
oct11772477664
93412802152
101340768180
11628912a84
1231502b618
13184a1036b
14ca0d41da
157ca949a5
hex4fea7fb4

1340768180 has 24 divisors (see below), whose sum is σ = 2816978472. Its totient is φ = 536047232.

The previous prime is 1340768159. The next prime is 1340768203. The reversal of 1340768180 is 818670431.

It can be written as a sum of positive squares in 4 ways, for example, as 467683876 + 873084304 = 21626^2 + 29548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29114 + ... + 59406.

It is an arithmetic number, because the mean of its divisors is an integer number (117374103).

Almost surely, 21340768180 is an apocalyptic number.

1340768180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340768180 is an abundant number, since it is smaller than the sum of its proper divisors (1476210292).

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

1340768180 is a wasteful number, since it uses less digits than its factorization.

1340768180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32515 (or 32513 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1340768180 is about 36616.5014713312. The cubic root of 1340768180 is about 1102.6844024248.

The spelling of 1340768180 in words is "one billion, three hundred forty million, seven hundred sixty-eight thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 2213 4426 8852 11065 22130 30293 44260 60586 121172 151465 302930 605860 67038409 134076818 268153636 335192045 670384090 1340768180