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27312655123 = 136731357813
BaseRepresentation
bin11001011011111101…
…100000101100010011
32121111110120122020101
4121123331200230103
5421414014430443
620314112553231
71654555511065
oct313375405423
977443518211
1027312655123
1110646311056
125362b52817
1327636bc8c0
14147158b735
15a9cc4384d
hex65bf60b13

27312655123 has 8 divisors (see below), whose sum is σ = 29852638928. Its totient is φ = 24835387104.

The previous prime is 27312655091. The next prime is 27312655151. The reversal of 27312655123 is 32155621372.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27312655123 - 25 = 27312655091 is a prime.

It is a super-2 number, since 2×273126551232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27312655163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15678036 + ... + 15679777.

It is an arithmetic number, because the mean of its divisors is an integer number (3731579866).

Almost surely, 227312655123 is an apocalyptic number.

27312655123 is a deficient number, since it is larger than the sum of its proper divisors (2539983805).

27312655123 is a wasteful number, since it uses less digits than its factorization.

27312655123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31357893.

The product of its digits is 75600, while the sum is 37.

The spelling of 27312655123 in words is "twenty-seven billion, three hundred twelve million, six hundred fifty-five thousand, one hundred twenty-three".

Divisors: 1 13 67 871 31357813 407651569 2100973471 27312655123