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10120155169 is a prime number
BaseRepresentation
bin10010110110011010…
…10101000000100001
3222010021212011000211
421123031111000201
5131211224431134
64352114014121
7505533620365
oct113315250041
928107764024
1010120155169
114323622403
121b65277341
13c53869bc7
146c00bd2a5
153e36e4764
hex25b355021

10120155169 has 2 divisors, whose sum is σ = 10120155170. Its totient is φ = 10120155168.

The previous prime is 10120155167. The next prime is 10120155191. The reversal of 10120155169 is 96155102101.

10120155169 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7112729569 + 3007425600 = 84337^2 + 54840^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120155169 - 21 = 10120155167 is a prime.

It is a super-2 number, since 2×101201551692 (a number of 21 digits) contains 22 as substring.

Together with 10120155167, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10120155169.

It is not a weakly prime, because it can be changed into another prime (10120155167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060077584 + 5060077585.

It is an arithmetic number, because the mean of its divisors is an integer number (5060077585).

Almost surely, 210120155169 is an apocalyptic number.

It is an amenable number.

10120155169 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120155169 is an equidigital number, since it uses as much as digits as its factorization.

10120155169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 31.

The spelling of 10120155169 in words is "ten billion, one hundred twenty million, one hundred fifty-five thousand, one hundred sixty-nine".