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75284897 = 194196643
BaseRepresentation
bin1000111110011…
…00000110100001
312020122212110112
410133030012201
5123233104042
611245341105
71602624332
oct437140641
9166585415
1075284897
1139550726
1221267795
131279c19c
149dda289
156921982
hex47cc1a1

75284897 has 8 divisors (see below), whose sum is σ = 81180960. Its totient is φ = 69582240.

The previous prime is 75284887. The next prime is 75284947. The reversal of 75284897 is 79848257.

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

It is a cyclic number.

It is not a de Polignac number, because 75284897 - 28 = 75284641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75284887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47543 + ... + 49100.

It is an arithmetic number, because the mean of its divisors is an integer number (10147620).

Almost surely, 275284897 is an apocalyptic number.

It is an amenable number.

75284897 is a deficient number, since it is larger than the sum of its proper divisors (5896063).

75284897 is a wasteful number, since it uses less digits than its factorization.

75284897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96703.

The product of its digits is 1128960, while the sum is 50.

The square root of 75284897 is about 8676.6869829446. The cubic root of 75284897 is about 422.2496389117.

The spelling of 75284897 in words is "seventy-five million, two hundred eighty-four thousand, eight hundred ninety-seven".

Divisors: 1 19 41 779 96643 1836217 3962363 75284897