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6081252749 = 1113397107119
BaseRepresentation
bin1011010100111100…
…01000110110001101
3120200210221122111022
411222132020312031
544423300041444
62443234203525
7303461536565
oct55236106615
916623848438
106081252749
112640788220
1212187235a5
1375bb77410
1441991dda5
15258d379ee
hex16a788d8d

6081252749 has 16 divisors (see below), whose sum is σ = 7162471680. Its totient is φ = 5090247360.

The previous prime is 6081252721. The next prime is 6081252791. The reversal of 6081252749 is 9472521806.

It is a happy number.

It is not a de Polignac number, because 6081252749 - 232 = 1786285453 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6081255749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212 + ... + 110330.

It is an arithmetic number, because the mean of its divisors is an integer number (447654480).

Almost surely, 26081252749 is an apocalyptic number.

It is an amenable number.

6081252749 is a deficient number, since it is larger than the sum of its proper divisors (1081218931).

6081252749 is a wasteful number, since it uses less digits than its factorization.

6081252749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107540.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 6081252749 is about 77982.3874281879. The cubic root of 6081252749 is about 1825.2864001891.

The spelling of 6081252749 in words is "six billion, eighty-one million, two hundred fifty-two thousand, seven hundred forty-nine".

Divisors: 1 11 13 143 397 4367 5161 56771 107119 1178309 1392547 15318017 42526243 467788673 552841159 6081252749