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16800113620 = 225840005681
BaseRepresentation
bin11111010010101110…
…10110001111010100
31121100211101012100101
433221113112033110
5233401312113440
611415020423444
71133215416043
oct175127261724
947324335311
1016800113620
117141254024
12330a3a7b84
131779778a44
14b5532a55a
15684d9169a
hex3e95d63d4

16800113620 has 12 divisors (see below), whose sum is σ = 35280238644. Its totient is φ = 6720045440.

The previous prime is 16800113591. The next prime is 16800113621. The reversal of 16800113620 is 2631100861.

It can be written as a sum of positive squares in 2 ways, for example, as 10766552644 + 6033560976 = 103762^2 + 77676^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16800113621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420002821 + ... + 420002860.

It is an arithmetic number, because the mean of its divisors is an integer number (2940019887).

Almost surely, 216800113620 is an apocalyptic number.

16800113620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16800113620 is an abundant number, since it is smaller than the sum of its proper divisors (18480125024).

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

16800113620 is a wasteful number, since it uses less digits than its factorization.

16800113620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840005690 (or 840005688 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 16800113620 in words is "sixteen billion, eight hundred million, one hundred thirteen thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 840005681 1680011362 3360022724 4200028405 8400056810 16800113620