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109488993 = 31723313011
BaseRepresentation
bin1101000011010…
…10101101100001
321122000121122220
412201222231201
5211012121433
614510421253
72466432615
oct641525541
9248017586
10109488993
1156892779
1230801829
13198b68b3
1410781345
15992b2b3
hex686ab61

109488993 has 32 divisors (see below), whose sum is σ = 166551552. Its totient is φ = 63571200.

The previous prime is 109488979. The next prime is 109488997. The reversal of 109488993 is 399884901.

It is a happy number.

It is not a de Polignac number, because 109488993 - 210 = 109487969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (109488997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34858 + ... + 37868.

It is an arithmetic number, because the mean of its divisors is an integer number (5204736).

Almost surely, 2109488993 is an apocalyptic number.

It is an amenable number.

109488993 is a deficient number, since it is larger than the sum of its proper divisors (57062559).

109488993 is a wasteful number, since it uses less digits than its factorization.

109488993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085.

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 109488993 is about 10463.6988202069. The cubic root of 109488993 is about 478.3988795424.

The spelling of 109488993 in words is "one hundred nine million, four hundred eighty-eight thousand, nine hundred ninety-three".

Divisors: 1 3 17 23 31 51 69 93 391 527 713 1173 1581 2139 3011 9033 12121 36363 51187 69253 93341 153561 207759 280023 1177301 1586797 2146843 3531903 4760391 6440529 36496331 109488993