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16919130 = 235563971
BaseRepresentation
bin100000010001…
…0101001011010
31011211120200110
41000202221122
513312403010
61402345150
7263544624
oct100425132
934746613
1016919130
119606658
1257bb1b6
133675027
142365c14
151743120
hex1022a5a

16919130 has 16 divisors (see below), whose sum is σ = 40605984. Its totient is φ = 4511760.

The previous prime is 16919129. The next prime is 16919141. The reversal of 16919130 is 3191961.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 563971 = 16919130 / (1 + 6 + 9 + 1 + 9 + 1 + 3 + 0).

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, 281956 + ... + 282015.

It is an arithmetic number, because the mean of its divisors is an integer number (2537874).

Almost surely, 216919130 is an apocalyptic number.

16919130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16919130 is an abundant number, since it is smaller than the sum of its proper divisors (23686854).

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

16919130 is a wasteful number, since it uses less digits than its factorization.

16919130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563981.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 16919130 is about 4113.2870067624. The cubic root of 16919130 is about 256.7197862358.

The spelling of 16919130 in words is "sixteen million, nine hundred nineteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 563971 1127942 1691913 2819855 3383826 5639710 8459565 16919130