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75057236 = 22131143239
BaseRepresentation
bin1000111100101…
…00100001010100
312020020022011122
410132110201110
5123203312421
611240423112
71600655522
oct436244124
9166208148
1075057236
1139405681
1221177a98
131271c687
149d7b312
1568c92ab
hex4794854

75057236 has 12 divisors (see below), whose sum is σ = 132353760. Its totient is φ = 37241880.

The previous prime is 75057221. The next prime is 75057247. The reversal of 75057236 is 63275057.

It is a junction number, because it is equal to n+sod(n) for n = 75057196 and 75057205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71096 + ... + 72143.

It is an arithmetic number, because the mean of its divisors is an integer number (11029480).

Almost surely, 275057236 is an apocalyptic number.

It is an amenable number.

75057236 is a deficient number, since it is larger than the sum of its proper divisors (57296524).

75057236 is a wasteful number, since it uses less digits than its factorization.

75057236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143374 (or 143372 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 75057236 is about 8663.5579296268. The cubic root of 75057236 is about 421.8235825109.

It can be divided in two parts, 7505 and 7236, that added together give a palindrome (14741).

The spelling of 75057236 in words is "seventy-five million, fifty-seven thousand, two hundred thirty-six".

Divisors: 1 2 4 131 262 524 143239 286478 572956 18764309 37528618 75057236