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2221885494240 = 2535174311035741
BaseRepresentation
bin100000010101010010101…
…100100001001111100000
321212102002000112211120020
4200111102230201033200
5242400410141303430
64420415313113440
7316345252041516
oct40252254411740
97772060484506
102221885494240
11787329489805
122ba748b58880
131316a4a83329
147977b4264b6
153cbe29b2b10
hex20552b213e0

2221885494240 has 384 divisors, whose sum is σ = 7591179036672. Its totient is φ = 544092487680.

The previous prime is 2221885494229. The next prime is 2221885494263. The reversal of 2221885494240 is 424945881222.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 387017770 + ... + 387023510.

It is an arithmetic number, because the mean of its divisors is an integer number (19768695408).

Almost surely, 22221885494240 is an apocalyptic number.

2221885494240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221885494240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3795589518336).

2221885494240 is an abundant number, since it is smaller than the sum of its proper divisors (5369293542432).

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

2221885494240 is a wasteful number, since it uses less digits than its factorization.

2221885494240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6922 (or 6914 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 2221885494240 in words is "two trillion, two hundred twenty-one billion, eight hundred eighty-five million, four hundred ninety-four thousand, two hundred forty".