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1368294688 = 2542759209
BaseRepresentation
bin101000110001110…
…1000010100100000
310112100200120110001
41101203220110200
510300240412223
6343435145344
745623212225
oct12143502440
93470616401
101368294688
11642404062
123222a5254
1318a62a537
14cda1b94c
15801d09ad
hex518e8520

1368294688 has 12 divisors (see below), whose sum is σ = 2693830230. Its totient is φ = 684147328.

The previous prime is 1368294673. The next prime is 1368294689. The reversal of 1368294688 is 8864928631.

It can be written as a sum of positive squares in only one way, i.e., 1365154704 + 3139984 = 36948^2 + 1772^2 .

It is not an unprimeable number, because it can be changed into a prime (1368294689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21379573 + ... + 21379636.

Almost surely, 21368294688 is an apocalyptic number.

It is an amenable number.

1368294688 is a deficient number, since it is larger than the sum of its proper divisors (1325535542).

1368294688 is an equidigital number, since it uses as much as digits as its factorization.

1368294688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42759219 (or 42759211 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 55.

The square root of 1368294688 is about 36990.4675288107. The cubic root of 1368294688 is about 1110.1795256527.

The spelling of 1368294688 in words is "one billion, three hundred sixty-eight million, two hundred ninety-four thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 32 42759209 85518418 171036836 342073672 684147344 1368294688