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128314367 = 619207293
BaseRepresentation
bin1111010010111…
…10101111111111
322221110001012222
413221132233333
5230322024432
620422115555
73115440236
oct751365777
9287401188
10128314367
1166480535
1236b7bbbb
132077847c
1413081b1d
15b3e9112
hex7a5ebff

128314367 has 4 divisors (see below), whose sum is σ = 128522280. Its totient is φ = 128106456.

The previous prime is 128314331. The next prime is 128314393. The reversal of 128314367 is 763413821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 763413821 = 1913996931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-128314367 is a prime.

It is a super-2 number, since 2×1283143672 = 32929153557221378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128314327) 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, 103028 + ... + 104265.

It is an arithmetic number, because the mean of its divisors is an integer number (32130570).

Almost surely, 2128314367 is an apocalyptic number.

128314367 is a deficient number, since it is larger than the sum of its proper divisors (207913).

128314367 is an equidigital number, since it uses as much as digits as its factorization.

128314367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207912.

The product of its digits is 24192, while the sum is 35.

The square root of 128314367 is about 11327.5931688951. The cubic root of 128314367 is about 504.3806634870.

The spelling of 128314367 in words is "one hundred twenty-eight million, three hundred fourteen thousand, three hundred sixty-seven".

Divisors: 1 619 207293 128314367