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75028642 = 2134995783
BaseRepresentation
bin1000111100011…
…01100010100010
312020011211221121
410132031202202
5123201404032
611240042454
71600506253
oct436154242
9166154847
1075028642
1139396147
122116342a
131270c660
149d70b2a
1568c0a97
hex478d8a2

75028642 has 16 divisors (see below), whose sum is σ = 121464000. Its totient is φ = 34553232.

The previous prime is 75028631. The next prime is 75028643. The reversal of 75028642 is 24682057.

It is a junction number, because it is equal to n+sod(n) for n = 75028598 and 75028607.

It is not an unprimeable number, because it can be changed into a prime (75028643) 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, 10083 + ... + 15865.

It is an arithmetic number, because the mean of its divisors is an integer number (7591500).

Almost surely, 275028642 is an apocalyptic number.

75028642 is a deficient number, since it is larger than the sum of its proper divisors (46435358).

75028642 is a wasteful number, since it uses less digits than its factorization.

75028642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6297.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 75028642 is about 8661.9075266364. The cubic root of 75028642 is about 421.7700093705.

It can be divided in two parts, 750 and 28642, that added together give a palindrome (29392).

The spelling of 75028642 in words is "seventy-five million, twenty-eight thousand, six hundred forty-two".

Divisors: 1 2 13 26 499 998 5783 6487 11566 12974 75179 150358 2885717 5771434 37514321 75028642