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2231285396 = 22557821349
BaseRepresentation
bin1000010011111110…
…1011011010010100
312202111120001010212
42010333223122110
514032202113041
61005224104552
7106202420144
oct20477533224
95674501125
102231285396
11a4555881a
12523305158
13297366722
141724a2924
15d0d4b8eb
hex84feb694

2231285396 has 6 divisors (see below), whose sum is σ = 3904749450. Its totient is φ = 1115642696.

The previous prime is 2231285393. The next prime is 2231285417. The reversal of 2231285396 is 6935821322.

It can be written as a sum of positive squares in only one way, i.e., 1366337296 + 864948100 = 36964^2 + 29410^2 .

It is a super-3 number, since 3×22312853963 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231285393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278910671 + ... + 278910678.

It is an arithmetic number, because the mean of its divisors is an integer number (650791575).

Almost surely, 22231285396 is an apocalyptic number.

It is an amenable number.

2231285396 is a deficient number, since it is larger than the sum of its proper divisors (1673464054).

2231285396 is a wasteful number, since it uses less digits than its factorization.

2231285396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557821353 (or 557821351 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 2231285396 is about 47236.4837387374. The cubic root of 2231285396 is about 1306.7275303398.

The spelling of 2231285396 in words is "two billion, two hundred thirty-one million, two hundred eighty-five thousand, three hundred ninety-six".

Divisors: 1 2 4 557821349 1115642698 2231285396