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16871340740 = 225843567037
BaseRepresentation
bin11111011011001110…
…00011101011000100
31121112210101220120212
433231213003223010
5234023030400430
611430043214552
71135042013222
oct175547035304
947483356525
1016871340740
117178483011
12332a217458
13178b456c77
14b6098bb12
1568b260b95
hex3ed9c3ac4

16871340740 has 12 divisors (see below), whose sum is σ = 35429815596. Its totient is φ = 6748536288.

The previous prime is 16871340727. The next prime is 16871340743. The reversal of 16871340740 is 4704317861.

It can be written as a sum of positive squares in 2 ways, for example, as 2871245056 + 14000095684 = 53584^2 + 118322^2 .

It is not an unprimeable number, because it can be changed into a prime (16871340743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421783499 + ... + 421783538.

It is an arithmetic number, because the mean of its divisors is an integer number (2952484633).

Almost surely, 216871340740 is an apocalyptic number.

16871340740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16871340740 is an abundant number, since it is smaller than the sum of its proper divisors (18558474856).

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

16871340740 is a wasteful number, since it uses less digits than its factorization.

16871340740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843567046 (or 843567044 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 16871340740 in words is "sixteen billion, eight hundred seventy-one million, three hundred forty thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 843567037 1687134074 3374268148 4217835185 8435670370 16871340740