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2188852512216 = 2333019972
BaseRepresentation
bin11111110110100001110…
…001101100010111011000
321202020210220011111000120
4133312201301230113120
5241330232220342331
64353313413433240
7314065543241466
oct37664161542730
97666726144016
102188852512216
117743181a8467
122b426a33b820
1312b53c229616
1477d2626b836
153be0c97c796
hex1fda1c6c5d8

2188852512216 has 24 divisors (see below), whose sum is σ = 5472149400420. Its totient is φ = 729615088096.

The previous prime is 2188852512211. The next prime is 2188852512241. The reversal of 2188852512216 is 6122152588812.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188852512211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7096930 + ... + 7398926.

Almost surely, 22188852512216 is an apocalyptic number.

It is an amenable number.

2188852512216 is an abundant number, since it is smaller than the sum of its proper divisors (3283296888204).

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

2188852512216 is an frugal number, since it uses more digits than its factorization.

2188852512216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604003 (or 302002 counting only the distinct ones).

The product of its digits is 1228800, while the sum is 51.

The spelling of 2188852512216 in words is "two trillion, one hundred eighty-eight billion, eight hundred fifty-two million, five hundred twelve thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 301997 603994 905991 1207988 1811982 2415976 3623964 7247928 91202188009 182404376018 273606564027 364808752036 547213128054 729617504072 1094426256108 2188852512216