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11078075385 = 3251331635987
BaseRepresentation
bin10100101000100111…
…00000001111111001
31001121001100112112100
422110103200033321
5140141441403020
65031133334013
7541345041606
oct122423401771
931531315470
1011078075385
114775315003
122192037309
1310771629c0
147713d56ad
1544c862a90
hex2944e03f9

11078075385 has 48 divisors (see below), whose sum is σ = 20689066944. Its totient is φ = 5451186816.

The previous prime is 11078075363. The next prime is 11078075387. The reversal of 11078075385 is 58357087011.

11078075385 is a `hidden beast` number, since 1 + 107 + 8 + 0 + 7 + 538 + 5 = 666.

It is not a de Polignac number, because 11078075385 - 25 = 11078075353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11078075385.

It is not an unprimeable number, because it can be changed into a prime (11078075387) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1847362 + ... + 1853348.

It is an arithmetic number, because the mean of its divisors is an integer number (431022228).

Almost surely, 211078075385 is an apocalyptic number.

11078075385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11078075385 is a deficient number, since it is larger than the sum of its proper divisors (9610991559).

11078075385 is a wasteful number, since it uses less digits than its factorization.

11078075385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174 (or 9171 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The spelling of 11078075385 in words is "eleven billion, seventy-eight million, seventy-five thousand, three hundred eighty-five".

Divisors: 1 3 5 9 13 15 39 45 65 117 195 585 3163 5987 9489 15815 17961 28467 29935 41119 47445 53883 77831 89805 123357 142335 205595 233493 269415 370071 389155 616785 700479 1167465 1850355 3502395 18936881 56810643 94684405 170431929 246179453 284053215 738538359 852159645 1230897265 2215615077 3692691795 11078075385