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16980453 = 327409659
BaseRepresentation
bin100000011000…
…1100111100101
31011221200210200
41000301213211
513321333303
61403541113
7264221460
oct100614745
934850720
1016980453
119648736
12582a799
133696c09
1423802d7
1517563a3
hex10319e5

16980453 has 24 divisors (see below), whose sum is σ = 28142400. Its totient is φ = 9664704.

The previous prime is 16980451. The next prime is 16980493. The reversal of 16980453 is 35408961.

It is not a de Polignac number, because 16980453 - 21 = 16980451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16980451) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 25438 + ... + 26096.

It is an arithmetic number, because the mean of its divisors is an integer number (1172600).

Almost surely, 216980453 is an apocalyptic number.

It is an amenable number.

16980453 is a deficient number, since it is larger than the sum of its proper divisors (11161947).

16980453 is a wasteful number, since it uses less digits than its factorization.

16980453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081 (or 1078 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 16980453 is about 4120.7345219026. The cubic root of 16980453 is about 257.0295706006.

The spelling of 16980453 in words is "sixteen million, nine hundred eighty thousand, four hundred fifty-three".

Divisors: 1 3 7 9 21 63 409 659 1227 1977 2863 3681 4613 5931 8589 13839 25767 41517 269531 808593 1886717 2425779 5660151 16980453