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16040080 = 245728643
BaseRepresentation
bin111101001100…
…000010010000
31010011220212001
4331030002100
513101240310
61331443344
7253224040
oct75140220
933156761
1016040080
119066171
125456554
133427b94
1421b7720
15161c93a
hexf4c090

16040080 has 40 divisors (see below), whose sum is σ = 42622272. Its totient is φ = 5499264.

The previous prime is 16040077. The next prime is 16040093. The reversal of 16040080 is 8004061.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13762 + ... + 14881.

Almost surely, 216040080 is an apocalyptic number.

16040080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16040080 is an abundant number, since it is smaller than the sum of its proper divisors (26582192).

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

16040080 is a wasteful number, since it uses less digits than its factorization.

16040080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28663 (or 28657 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 16040080 is about 4005.0068664111. The cubic root of 16040080 is about 252.1944413487.

The spelling of 16040080 in words is "sixteen million, forty thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 28643 57286 114572 143215 200501 229144 286430 401002 458288 572860 802004 1002505 1145720 1604008 2005010 2291440 3208016 4010020 8020040 16040080