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2149913227 = 71183336397
BaseRepresentation
bin1000000000100101…
…0001001010001011
312112211102220111211
42000021101022023
513400334210402
6553200033551
7104163650410
oct20011211213
95484386454
102149913227
11a0362a6a0
125000028b7
13283545907
14165760107
15c8b264d7
hex8025128b

2149913227 has 16 divisors (see below), whose sum is σ = 2712713472. Its totient is φ = 1655068320.

The previous prime is 2149913149. The next prime is 2149913237. The reversal of 2149913227 is 7223199412.

It is a cyclic number.

It is not a de Polignac number, because 2149913227 - 215 = 2149880459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2149913227.

It is not an unprimeable number, because it can be changed into a prime (2149913237) 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, 161808 + ... + 174589.

It is an arithmetic number, because the mean of its divisors is an integer number (169544592).

Almost surely, 22149913227 is an apocalyptic number.

2149913227 is a deficient number, since it is larger than the sum of its proper divisors (562800245).

2149913227 is a wasteful number, since it uses less digits than its factorization.

2149913227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336498.

The product of its digits is 54432, while the sum is 40.

The square root of 2149913227 is about 46367.1567707143. The cubic root of 2149913227 is about 1290.6455169226.

The spelling of 2149913227 in words is "two billion, one hundred forty-nine million, nine hundred thirteen thousand, two hundred twenty-seven".

Divisors: 1 7 11 77 83 581 913 6391 336397 2354779 3700367 25902569 27920951 195446657 307130461 2149913227