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16880080 = 245743701
BaseRepresentation
bin100000001100…
…1000111010000
31011202121010011
41000121013100
513310130310
61401444304
7263323030
oct100310720
934677104
1016880080
11958a288
1257a0694
133660319
1423558c0
15173678a
hex10191d0

16880080 has 80 divisors (see below), whose sum is σ = 45961344. Its totient is φ = 5644800.

The previous prime is 16880057. The next prime is 16880081. The reversal of 16880080 is 8008861.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16880081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23730 + ... + 24430.

Almost surely, 216880080 is an apocalyptic number.

16880080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16880080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22980672).

16880080 is an abundant number, since it is smaller than the sum of its proper divisors (29081264).

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

16880080 is a wasteful number, since it uses less digits than its factorization.

16880080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 16880080 is about 4108.5374526710. The cubic root of 16880080 is about 256.5221277238.

The spelling of 16880080 in words is "sixteen million, eight hundred eighty thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 43 56 70 80 86 112 140 172 215 280 301 344 430 560 602 688 701 860 1204 1402 1505 1720 2408 2804 3010 3440 3505 4816 4907 5608 6020 7010 9814 11216 12040 14020 19628 24080 24535 28040 30143 39256 49070 56080 60286 78512 98140 120572 150715 196280 211001 241144 301430 392560 422002 482288 602860 844004 1055005 1205720 1688008 2110010 2411440 3376016 4220020 8440040 16880080