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75712012 = 2218928003
BaseRepresentation
bin1001000001101…
…00011000001100
312021110120100121
410200310120030
5123340241022
611302434324
71606353505
oct440643014
9167416317
1075712012
1139812612
12214329a4
13128bb70c
14a0abbac
1569a82c7
hex483460c

75712012 has 6 divisors (see below), whose sum is σ = 132496028. Its totient is φ = 37856004.

The previous prime is 75712009. The next prime is 75712061. The reversal of 75712012 is 21021757.

It is a happy number.

It is a super-2 number, since 2×757120122 = 11464617522176288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9463998 + ... + 9464005.

Almost surely, 275712012 is an apocalyptic number.

It is an amenable number.

75712012 is a deficient number, since it is larger than the sum of its proper divisors (56784016).

75712012 is a wasteful number, since it uses less digits than its factorization.

75712012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18928007 (or 18928005 counting only the distinct ones).

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 75712012 is about 8701.2649655093. The cubic root of 75712012 is about 423.0466520948.

Adding to 75712012 its reverse (21021757), we get a palindrome (96733769).

It can be divided in two parts, 757 and 12012, that added together give a square (12769 = 1132).

The spelling of 75712012 in words is "seventy-five million, seven hundred twelve thousand, twelve".

Divisors: 1 2 4 18928003 37856006 75712012