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16980512 = 25530641
BaseRepresentation
bin100000011000…
…1101000100000
31011221200212212
41000301220200
513321334022
61403541252
7264221603
oct100615040
934850785
1016980512
11964878a
12582a828
133696c53
14238033a
1517563e2
hex1031a20

16980512 has 12 divisors (see below), whose sum is σ = 33430446. Its totient is φ = 8490240.

The previous prime is 16980503. The next prime is 16980517. The reversal of 16980512 is 21508961.

It can be written as a sum of positive squares in only one way, i.e., 13278736 + 3701776 = 3644^2 + 1924^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 530641 = 16980512 / (1 + 6 + 9 + 8 + 0 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (16980517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265289 + ... + 265352.

Almost surely, 216980512 is an apocalyptic number.

It is an amenable number.

16980512 is a deficient number, since it is larger than the sum of its proper divisors (16449934).

16980512 is an equidigital number, since it uses as much as digits as its factorization.

16980512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530651 (or 530643 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 16980512 is about 4120.7416808143. The cubic root of 16980512 is about 257.0298682905.

The spelling of 16980512 in words is "sixteen million, nine hundred eighty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 32 530641 1061282 2122564 4245128 8490256 16980512