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16128066 = 2311032437
BaseRepresentation
bin111101100001…
…100001000010
31010100101112210
4331201201002
513112044231
61333402550
7254041413
oct75414102
933311483
1016128066
119116289
125499456
133458c46
1421db80a
151638a46
hexf61842

16128066 has 16 divisors (see below), whose sum is σ = 32298624. Its totient is φ = 5368944.

The previous prime is 16128061. The next prime is 16128067. The reversal of 16128066 is 66082161.

It is a super-2 number, since 2×161280662 = 520229025800712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16128061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5400 + ... + 7836.

It is an arithmetic number, because the mean of its divisors is an integer number (2018664).

Almost surely, 216128066 is an apocalyptic number.

16128066 is an abundant number, since it is smaller than the sum of its proper divisors (16170558).

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

16128066 is a wasteful number, since it uses less digits than its factorization.

16128066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 16128066 is about 4015.9763445518. The cubic root of 16128066 is about 252.6547285484.

The spelling of 16128066 in words is "sixteen million, one hundred twenty-eight thousand, sixty-six".

Divisors: 1 2 3 6 1103 2206 2437 3309 4874 6618 7311 14622 2688011 5376022 8064033 16128066