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108705069 = 32112173577
BaseRepresentation
bin1100111101010…
…11010100101101
321120112210022200
412132223110231
5210312030234
614441532113
72456656254
oct636532455
9246483280
10108705069
11563a7800
12304a4039
13196a0b35
141061979b
159823d99
hex67ab52d

108705069 has 36 divisors (see below), whose sum is σ = 173888988. Its totient is φ = 65387520.

The previous prime is 108705059. The next prime is 108705119. The reversal of 108705069 is 960507801.

It can be written as a sum of positive squares in 2 ways, for example, as 104652900 + 4052169 = 10230^2 + 2013^2 .

It is not a de Polignac number, because 108705069 - 213 = 108696877 is a prime.

It is a super-2 number, since 2×1087050692 = 23633584052589522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108705019) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188109 + ... + 188685.

Almost surely, 2108705069 is an apocalyptic number.

It is an amenable number.

108705069 is a deficient number, since it is larger than the sum of its proper divisors (65183919).

108705069 is a wasteful number, since it uses less digits than its factorization.

108705069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 108705069 is about 10426.1723081867. The cubic root of 108705069 is about 477.2543901031.

The spelling of 108705069 in words is "one hundred eight million, seven hundred five thousand, sixty-nine".

Divisors: 1 3 9 11 33 99 121 173 363 519 577 1089 1557 1731 1903 5193 5709 6347 17127 19041 20933 57123 62799 69817 99821 188397 209451 299463 628353 898389 1098031 3294093 9882279 12078341 36235023 108705069