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75355379 = 116850489
BaseRepresentation
bin1000111110111…
…01010011110011
312020210110010222
410133131103303
5123242333004
611251043255
71603336661
oct437352363
9166713128
1075355379
1139599680
12212a052b
13127c52a8
14a017c31
1569377be
hex47dd4f3

75355379 has 4 divisors (see below), whose sum is σ = 82205880. Its totient is φ = 68504880.

The previous prime is 75355367. The next prime is 75355381. The reversal of 75355379 is 97355357.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97355357 = 118850487.

It is a cyclic number.

It is not a de Polignac number, because 75355379 - 24 = 75355363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75355279) 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, 3425234 + ... + 3425255.

It is an arithmetic number, because the mean of its divisors is an integer number (20551470).

Almost surely, 275355379 is an apocalyptic number.

75355379 is a deficient number, since it is larger than the sum of its proper divisors (6850501).

75355379 is a wasteful number, since it uses less digits than its factorization.

75355379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6850500.

The product of its digits is 496125, while the sum is 44.

The square root of 75355379 is about 8680.7476060533. The cubic root of 75355379 is about 422.3813683714.

The spelling of 75355379 in words is "seventy-five million, three hundred fifty-five thousand, three hundred seventy-nine".

Divisors: 1 11 6850489 75355379