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2213291384 = 23276661423
BaseRepresentation
bin1000001111101100…
…0010010101111000
312201020200211222222
42003323002111320
514013100311014
61003342303212
7105563444363
oct20373022570
95636624888
102213291384
11a36388637
12519287b08
13293706395
1416dd3b0da
15ce49508e
hex83ec2578

2213291384 has 8 divisors (see below), whose sum is σ = 4149921360. Its totient is φ = 1106645688.

The previous prime is 2213291371. The next prime is 2213291393. The reversal of 2213291384 is 4831923122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×22132913843 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138330704 + ... + 138330719.

It is an arithmetic number, because the mean of its divisors is an integer number (518740170).

Almost surely, 22213291384 is an apocalyptic number.

It is an amenable number.

2213291384 is a deficient number, since it is larger than the sum of its proper divisors (1936629976).

2213291384 is a wasteful number, since it uses less digits than its factorization.

2213291384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276661429 (or 276661425 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 2213291384 is about 47045.6308704645. The cubic root of 2213291384 is about 1303.2053807986.

The spelling of 2213291384 in words is "two billion, two hundred thirteen million, two hundred ninety-one thousand, three hundred eighty-four".

Divisors: 1 2 4 8 276661423 553322846 1106645692 2213291384