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16368680 = 235409217
BaseRepresentation
bin111110011100…
…010000101000
31010210121121102
4332130100220
513142244210
61342500532
7256063046
oct76342050
933717542
1016368680
119270039
125594748
133511613
142261396
151684ea5
hexf9c428

16368680 has 16 divisors (see below), whose sum is σ = 36829620. Its totient is φ = 6547456.

The previous prime is 16368661. The next prime is 16368701. The reversal of 16368680 is 8686361.

It can be written as a sum of positive squares in 2 ways, for example, as 13853284 + 2515396 = 3722^2 + 1586^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 204569 + ... + 204648.

Almost surely, 216368680 is an apocalyptic number.

16368680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16368680 is an abundant number, since it is smaller than the sum of its proper divisors (20460940).

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

16368680 is a wasteful number, since it uses less digits than its factorization.

16368680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409228 (or 409224 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 16368680 is about 4045.8225368891. The cubic root of 16368680 is about 253.9049802682.

The spelling of 16368680 in words is "sixteen million, three hundred sixty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 409217 818434 1636868 2046085 3273736 4092170 8184340 16368680