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10749894309 = 3271119816427
BaseRepresentation
bin10100000001011111…
…00101111010100101
31000202011211012201200
422000233211322211
5134003433104214
64534411313113
7530251410510
oct120057457245
930664735650
1010749894309
114617042780
12210014b799
131024178b0b
1473d9a7d77
1542db38d09
hex280be5ea5

10749894309 has 48 divisors (see below), whose sum is σ = 20378042880. Its totient is φ = 5290440480.

The previous prime is 10749894289. The next prime is 10749894313. The reversal of 10749894309 is 90349894701.

10749894309 is a `hidden beast` number, since 107 + 498 + 9 + 43 + 0 + 9 = 666.

10749894309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10749894309 - 217 = 10749763237 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10749899309) 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 47 ways as a sum of consecutive naturals, for example, 395047 + ... + 421380.

It is an arithmetic number, because the mean of its divisors is an integer number (424542560).

Almost surely, 210749894309 is an apocalyptic number.

10749894309 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

10749894309 is a deficient number, since it is larger than the sum of its proper divisors (9628148571).

10749894309 is a wasteful number, since it uses less digits than its factorization.

10749894309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816470 (or 816467 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 10749894309 in words is "ten billion, seven hundred forty-nine million, eight hundred ninety-four thousand, three hundred nine".

Divisors: 1 3 7 9 11 19 21 33 57 63 77 99 133 171 209 231 399 627 693 1197 1463 1881 4389 13167 816427 2449281 5714989 7347843 8980697 15512113 17144967 26942091 46536339 51434901 62864879 80826273 108584791 139609017 170633243 188594637 325754373 511899729 565783911 977263119 1194432701 1535699187 3583298103 10749894309