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13224988 = 2271924859
BaseRepresentation
bin110010011100…
…110000011100
3220212220021101
4302130300130
511341144423
61151242444
7220260550
oct62346034
926786241
1013224988
117513147
124519424
13298074a
141a83860
1512637ad
hexc9cc1c

13224988 has 24 divisors (see below), whose sum is σ = 27843200. Its totient is φ = 5369328.

The previous prime is 13224961. The next prime is 13224989. The reversal of 13224988 is 88942231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11898 + ... + 12961.

Almost surely, 213224988 is an apocalyptic number.

It is an amenable number.

13224988 is an abundant number, since it is smaller than the sum of its proper divisors (14618212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13224988 is a wasteful number, since it uses less digits than its factorization.

13224988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24889 (or 24887 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 13224988 is about 3636.6176593093. The cubic root of 13224988 is about 236.4821846956.

The spelling of 13224988 in words is "thirteen million, two hundred twenty-four thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 24859 49718 99436 174013 348026 472321 696052 944642 1889284 3306247 6612494 13224988