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27109004169 = 3131913639281
BaseRepresentation
bin11001001111110100…
…101001001110001001
32120222021101002122110
4121033310221032021
5421004401113134
620242000012533
71646533506402
oct311764511611
976867332573
1027109004169
1110551365085
125306901149
132730457890
1414524d89a9
15a89e177e9
hex64fd29389

27109004169 has 16 divisors (see below), whose sum is σ = 39129560064. Its totient is φ = 16595116800.

The previous prime is 27109004161. The next prime is 27109004171. The reversal of 27109004169 is 96140090172.

It is not a de Polignac number, because 27109004169 - 23 = 27109004161 is a prime.

It is a super-2 number, since 2×271090041692 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (27109004161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1812192 + ... + 1827089.

It is an arithmetic number, because the mean of its divisors is an integer number (2445597504).

Almost surely, 227109004169 is an apocalyptic number.

It is an amenable number.

27109004169 is a deficient number, since it is larger than the sum of its proper divisors (12020555895).

27109004169 is a wasteful number, since it uses less digits than its factorization.

27109004169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639488.

The product of its (nonzero) digits is 27216, while the sum is 39.

The spelling of 27109004169 in words is "twenty-seven billion, one hundred nine million, four thousand, one hundred sixty-nine".

Divisors: 1 3 13 39 191 573 2483 7449 3639281 10917843 47310653 141931959 695102671 2085308013 9036334723 27109004169