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1368348061 = 1972018319
BaseRepresentation
bin101000110001111…
…0101010110011101
310112100210021122211
41101203311112131
510300244114221
6343440240421
745623523643
oct12143652635
93470707584
101368348061
11642440173
12322310111
1318a648912
14cda33193
15801e16e1
hex518f559d

1368348061 has 4 divisors (see below), whose sum is σ = 1440366400. Its totient is φ = 1296329724.

The previous prime is 1368348053. The next prime is 1368348077. The reversal of 1368348061 is 1608438631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1368348061 - 23 = 1368348053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368348031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36009141 + ... + 36009178.

It is an arithmetic number, because the mean of its divisors is an integer number (360091600).

Almost surely, 21368348061 is an apocalyptic number.

It is an amenable number.

1368348061 is a deficient number, since it is larger than the sum of its proper divisors (72018339).

1368348061 is an equidigital number, since it uses as much as digits as its factorization.

1368348061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72018338.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1368348061 is about 36991.1889644007. The cubic root of 1368348061 is about 1110.1939603701.

The spelling of 1368348061 in words is "one billion, three hundred sixty-eight million, three hundred forty-eight thousand, sixty-one".

Divisors: 1 19 72018319 1368348061