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16456945480 = 235411423637
BaseRepresentation
bin11110101001110100…
…10000111101001000
31120110220122110011021
433110322100331020
5232200434223410
611321001242224
71121550504613
oct172472207510
946426573137
1016456945480
116a85575798
123233493374
131723645381
14b2191b17a
15664ba6eda
hex3d4e90f48

16456945480 has 16 divisors (see below), whose sum is σ = 37028127420. Its totient is φ = 6582778176.

The previous prime is 16456945469. The next prime is 16456945481. The reversal of 16456945480 is 8454965461.

16456945480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 16439855524 + 17089956 = 128218^2 + 4134^2 .

It is not an unprimeable number, because it can be changed into a prime (16456945481) 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, 205711779 + ... + 205711858.

Almost surely, 216456945480 is an apocalyptic number.

16456945480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16456945480 is an abundant number, since it is smaller than the sum of its proper divisors (20571181940).

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

16456945480 is a wasteful number, since it uses less digits than its factorization.

16456945480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411423648 (or 411423644 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 16456945480 in words is "sixteen billion, four hundred fifty-six million, nine hundred forty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 411423637 822847274 1645694548 2057118185 3291389096 4114236370 8228472740 16456945480