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2216920853 = 71735951893
BaseRepresentation
bin1000010000100011…
…1000011100010101
312201111112020200202
42010020320130111
514020012431403
61003552150245
7105636342050
oct20410703425
95644466622
102216920853
11a384374a4
1251a538385
132943a73b4
14170603a97
15ce960688
hex84238715

2216920853 has 16 divisors (see below), whose sum is σ = 2690184960. Its totient is φ = 1783424256.

The previous prime is 2216920843. The next prime is 2216920873. The reversal of 2216920853 is 3580296122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2216920853 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216920813) 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, 16775 + ... + 68667.

It is an arithmetic number, because the mean of its divisors is an integer number (168136560).

Almost surely, 22216920853 is an apocalyptic number.

It is an amenable number.

2216920853 is a deficient number, since it is larger than the sum of its proper divisors (473264107).

2216920853 is a wasteful number, since it uses less digits than its factorization.

2216920853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52276.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 2216920853 is about 47084.1889916350. The cubic root of 2216920853 is about 1303.9173461622.

The spelling of 2216920853 in words is "two billion, two hundred sixteen million, nine hundred twenty thousand, eight hundred fifty-three".

Divisors: 1 7 17 119 359 2513 6103 42721 51893 363251 882181 6175267 18629587 130407109 316702979 2216920853