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2239052881 = 131747215563
BaseRepresentation
bin1000010101110101…
…0011110001010001
312210001011200010111
42011131103301101
514041144143011
61010102401321
7106325430652
oct20535236121
95701150114
102239052881
11a4998362a
12525a30241
13298b56080
14173525529
15d1883121
hex85753c51

2239052881 has 16 divisors (see below), whose sum is σ = 2607462144. Its totient is φ = 1903843584.

The previous prime is 2239052869. The next prime is 2239052899. The reversal of 2239052881 is 1882509322.

It is a cyclic number.

It is not a de Polignac number, because 2239052881 - 221 = 2236955729 is a prime.

It is a super-2 number, since 2×22390528812 = 10026715607828800322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2239052801) 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, 97395 + ... + 118168.

It is an arithmetic number, because the mean of its divisors is an integer number (162966384).

Almost surely, 22239052881 is an apocalyptic number.

It is an amenable number.

2239052881 is a deficient number, since it is larger than the sum of its proper divisors (368409263).

2239052881 is a wasteful number, since it uses less digits than its factorization.

2239052881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215640.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 2239052881 is about 47318.6314362535. The cubic root of 2239052881 is about 1308.2420880159.

The spelling of 2239052881 in words is "two billion, two hundred thirty-nine million, fifty-two thousand, eight hundred eighty-one".

Divisors: 1 13 17 47 221 611 799 10387 215563 2802319 3664571 10131461 47639423 131708993 172234837 2239052881