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1348906169 = 13103762013
BaseRepresentation
bin101000001100110…
…1010110010111001
310111000012112101202
41100121222302321
510230304444134
6341503423545
745266341022
oct12031526271
93430175352
101348906169
11632471196
123178b4bb5
131865cc540
14cb211c49
157d650d7e
hex5066acb9

1348906169 has 4 divisors (see below), whose sum is σ = 1452668196. Its totient is φ = 1245144144.

The previous prime is 1348906147. The next prime is 1348906171. The reversal of 1348906169 is 9616098431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9616098431 = 18143530017.

It can be written as a sum of positive squares in 2 ways, for example, as 709423225 + 639482944 = 26635^2 + 25288^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1348906169 is a prime.

It is a super-2 number, since 2×13489061692 = 3639095705532513122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1348900169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51880994 + ... + 51881019.

It is an arithmetic number, because the mean of its divisors is an integer number (363167049).

Almost surely, 21348906169 is an apocalyptic number.

It is an amenable number.

1348906169 is a deficient number, since it is larger than the sum of its proper divisors (103762027).

1348906169 is a wasteful number, since it uses less digits than its factorization.

1348906169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103762026.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1348906169 is about 36727.4579708425. The cubic root of 1348906169 is about 1104.9108720589.

It can be divided in two parts, 134890 and 6169, that multiplied together give a triangular number (832136410 = T40795).

The spelling of 1348906169 in words is "one billion, three hundred forty-eight million, nine hundred six thousand, one hundred sixty-nine".

Divisors: 1 13 103762013 1348906169