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75064043 = 363720639
BaseRepresentation
bin1000111100101…
…10001011101011
312020020122111202
410132112023223
5123204022133
611240514415
71601014415
oct436261353
9166218452
1075064043
113940a7aa
122117ba0b
13127227c2
149d7d9b5
1568cb2e8
hex47962eb

75064043 has 4 divisors (see below), whose sum is σ = 75088320. Its totient is φ = 75039768.

The previous prime is 75064039. The next prime is 75064147. The reversal of 75064043 is 34046057.

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

It is a cyclic number.

It is not a de Polignac number, because 75064043 - 22 = 75064039 is a prime.

It is a super-2 number, since 2×750640432 = 11269221103011698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75063997 and 75064015.

It is not an unprimeable number, because it can be changed into a prime (75064543) 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, 6683 + ... + 13956.

It is an arithmetic number, because the mean of its divisors is an integer number (18772080).

Almost surely, 275064043 is an apocalyptic number.

75064043 is a deficient number, since it is larger than the sum of its proper divisors (24277).

75064043 is a wasteful number, since it uses less digits than its factorization.

75064043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24276.

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 75064043 is about 8663.9507731750. The cubic root of 75064043 is about 421.8363339633.

The spelling of 75064043 in words is "seventy-five million, sixty-four thousand, forty-three".

Divisors: 1 3637 20639 75064043