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16538080 = 255137951
BaseRepresentation
bin111111000101…
…100111100000
31011010012222111
4333011213200
513213204310
61350245104
7260366656
oct77054740
934105874
1016538080
119376339
125656794
133570760
1422a6dd6
1516ba28a
hexfc59e0

16538080 has 48 divisors (see below), whose sum is σ = 42081984. Its totient is φ = 6105600.

The previous prime is 16538057. The next prime is 16538087. The reversal of 16538080 is 8083561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16538087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1896 + ... + 6055.

It is an arithmetic number, because the mean of its divisors is an integer number (876708).

Almost surely, 216538080 is an apocalyptic number.

16538080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16538080 is an abundant number, since it is smaller than the sum of its proper divisors (25543904).

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

16538080 is a wasteful number, since it uses less digits than its factorization.

16538080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979 (or 7971 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 16538080 is about 4066.7038249668. The cubic root of 16538080 is about 254.7778662733. Note that the first 3 decimals are identical.

The spelling of 16538080 in words is "sixteen million, five hundred thirty-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 7951 15902 31804 39755 63608 79510 103363 127216 159020 206726 254432 318040 413452 516815 636080 826904 1033630 1272160 1653808 2067260 3307616 4134520 8269040 16538080