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6429388067 = 25432528269
BaseRepresentation
bin1011111110011100…
…01010110100100011
3121121002000202100222
411333032022310203
5101131410404232
62541552033255
7315216616424
oct57716126443
917532022328
106429388067
1127aa249463
1212b523282b
137b602994b
1444dc6364b
152796a3d12
hex17f38ad23

6429388067 has 4 divisors (see below), whose sum is σ = 6431918880. Its totient is φ = 6426857256.

The previous prime is 6429388039. The next prime is 6429388087. The reversal of 6429388067 is 7608839246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6429388067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6429388037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261592 + ... + 1266677.

It is an arithmetic number, because the mean of its divisors is an integer number (1607979720).

Almost surely, 26429388067 is an apocalyptic number.

6429388067 is a deficient number, since it is larger than the sum of its proper divisors (2530813).

6429388067 is a wasteful number, since it uses less digits than its factorization.

6429388067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530812.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The square root of 6429388067 is about 80183.4650473525. The cubic root of 6429388067 is about 1859.4730139805.

The spelling of 6429388067 in words is "six billion, four hundred twenty-nine million, three hundred eighty-eight thousand, sixty-seven".

Divisors: 1 2543 2528269 6429388067