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16642062053 = 73322704041
BaseRepresentation
bin11110111111111000…
…11011011011100101
31120221210222100100122
433133330123123211
5233040331441203
611351213051325
71126256123231
oct173774333345
946853870318
1016642062053
1170700125a1
123285486b45
131752abb0c6
14b3c3475c1
15676071538
hex3dff1b6e5

16642062053 has 4 divisors (see below), whose sum is σ = 16664766828. Its totient is φ = 16619357280.

The previous prime is 16642062049. The next prime is 16642062083. The reversal of 16642062053 is 35026024661.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14041776004 + 2600286049 = 118498^2 + 50993^2 .

It is a cyclic number.

It is not a de Polignac number, because 16642062053 - 22 = 16642062049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16642062083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11351288 + ... + 11352753.

It is an arithmetic number, because the mean of its divisors is an integer number (4166191707).

Almost surely, 216642062053 is an apocalyptic number.

It is an amenable number.

16642062053 is a deficient number, since it is larger than the sum of its proper divisors (22704775).

16642062053 is an equidigital number, since it uses as much as digits as its factorization.

16642062053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22704774.

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 16642062053 in words is "sixteen billion, six hundred forty-two million, sixty-two thousand, fifty-three".

Divisors: 1 733 22704041 16642062053