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16714640 = 245208933
BaseRepresentation
bin111111110000…
…101110010000
31011110012011202
4333300232100
513234332030
61354130332
7262033505
oct77605620
934405152
1016714640
119486a58
1257209a8
133602c27
1423114ac
151702745
hexff0b90

16714640 has 20 divisors (see below), whose sum is σ = 38861724. Its totient is φ = 6685824.

The previous prime is 16714637. The next prime is 16714669. The reversal of 16714640 is 4641761.

It can be written as a sum of positive squares in 2 ways, for example, as 3984016 + 12730624 = 1996^2 + 3568^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104387 + ... + 104546.

Almost surely, 216714640 is an apocalyptic number.

16714640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16714640 is an abundant number, since it is smaller than the sum of its proper divisors (22147084).

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

16714640 is a wasteful number, since it uses less digits than its factorization.

16714640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208946 (or 208940 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 16714640 is about 4088.3541920925. The cubic root of 16714640 is about 255.6813254766.

The spelling of 16714640 in words is "sixteen million, seven hundred fourteen thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 208933 417866 835732 1044665 1671464 2089330 3342928 4178660 8357320 16714640