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2221120089 = 3383991129
BaseRepresentation
bin1000010001100011…
…1001101001011001
312201210102120222000
42010120321221121
514022101320324
61004222151213
7106020131526
oct20430715131
95653376860
102221120089
11a3a845441
1251ba22509
13295217856
14170db814d
15ceede9c9
hex84639a59

2221120089 has 16 divisors (see below), whose sum is σ = 3330196800. Its totient is φ = 1462904928.

The previous prime is 2221120087. The next prime is 2221120093. The reversal of 2221120089 is 9800211222.

It is not a de Polignac number, because 2221120089 - 21 = 2221120087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2221120087) 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, 493324 + ... + 497805.

It is an arithmetic number, because the mean of its divisors is an integer number (208137300).

Almost surely, 22221120089 is an apocalyptic number.

It is an amenable number.

2221120089 is a deficient number, since it is larger than the sum of its proper divisors (1109076711).

2221120089 is an equidigital number, since it uses as much as digits as its factorization.

2221120089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991221 (or 991215 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 2221120089 is about 47128.7607411865. The cubic root of 2221120089 is about 1304.7401094300.

The spelling of 2221120089 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, eighty-nine".

Divisors: 1 3 9 27 83 249 747 2241 991129 2973387 8920161 26760483 82263707 246791121 740373363 2221120089