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16690080 = 25351129109
BaseRepresentation
bin111111101010…
…101110100000
31011101221111010
4333222232200
513233040310
61353420520
7261602061
oct77525640
934357433
1016690080
11946a560
12570a740
1335c49b4
142306568
1516ea320
hexfeaba0

16690080 has 192 divisors, whose sum is σ = 59875200. Its totient is φ = 3870720.

The previous prime is 16690057. The next prime is 16690103. The reversal of 16690080 is 8009661.

It is an interprime number because it is at equal distance from previous prime (16690057) and next prime (16690103).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153066 + ... + 153174.

It is an arithmetic number, because the mean of its divisors is an integer number (311850).

Almost surely, 216690080 is an apocalyptic number.

16690080 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 16690080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29937600).

16690080 is an abundant number, since it is smaller than the sum of its proper divisors (43185120).

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

16690080 is a wasteful number, since it uses less digits than its factorization.

16690080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 16690080 is about 4085.3494342590. The cubic root of 16690080 is about 255.5560338855.

It can be divided in two parts, 16 and 690080, that added together give a palindrome (690096).

The spelling of 16690080 in words is "sixteen million, six hundred ninety thousand, eighty".