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75200001 = 373343379
BaseRepresentation
bin1000111101101…
…11011000000001
312020111120000020
410132313120001
5123222400001
611243444053
71602121662
oct436673001
9166446006
1075200001
11394a2968
1221226629
131276c656
149db7369
156906736
hex47b7601

75200001 has 8 divisors (see below), whose sum is σ = 101640480. Its totient is φ = 49446432.

The previous prime is 75199981. The next prime is 75200003. The reversal of 75200001 is 10000257.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-75200001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75200003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171471 + ... + 171908.

It is an arithmetic number, because the mean of its divisors is an integer number (12705060).

Almost surely, 275200001 is an apocalyptic number.

It is an amenable number.

75200001 is a deficient number, since it is larger than the sum of its proper divisors (26440479).

75200001 is a wasteful number, since it uses less digits than its factorization.

75200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343455.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 75200001 is about 8671.7934131297. The cubic root of 75200001 is about 422.0908607690.

Adding to 75200001 its reverse (10000257), we get a palindrome (85200258).

The spelling of 75200001 in words is "seventy-five million, two hundred thousand, one".

Divisors: 1 3 73 219 343379 1030137 25066667 75200001