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2205210455540 = 225911578320929
BaseRepresentation
bin100000000101110000110…
…010010010110111110100
321210211000220112002202022
4200011300302102313310
5242112232334034130
64405020521132312
7315215112411401
oct40056062226764
97724026462668
102205210455540
117802518a3394
122b747462a098
1312cc481ba421
1478a389772a8
153c568aca7e5
hex20170c92df4

2205210455540 has 48 divisors (see below), whose sum is σ = 4637048532480. Its totient is φ = 880921466880.

The previous prime is 2205210455531. The next prime is 2205210455549. The reversal of 2205210455540 is 455540125022.

It is an interprime number because it is at equal distance from previous prime (2205210455531) and next prime (2205210455549).

It is a self number, because there is not a number n which added to its sum of digits gives 2205210455540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205210455549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105355796 + ... + 105376724.

It is an arithmetic number, because the mean of its divisors is an integer number (96605177760).

Almost surely, 22205210455540 is an apocalyptic number.

2205210455540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2205210455540 is an abundant number, since it is smaller than the sum of its proper divisors (2431838076940).

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

2205210455540 is a wasteful number, since it uses less digits than its factorization.

2205210455540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27632 (or 27630 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 2205210455540 in words is "two trillion, two hundred five billion, two hundred ten million, four hundred fifty-five thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 911 1822 3644 4555 5783 9110 11566 18220 20929 23132 28915 41858 57830 83716 104645 115660 209290 418580 5268313 10536626 19066319 21073252 26341565 38132638 52683130 76265276 95331595 105366260 121032407 190663190 242064814 381326380 484129628 605162035 1210324070 2420648140 110260522777 220521045554 441042091108 551302613885 1102605227770 2205210455540