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75016020 = 22353733791
BaseRepresentation
bin1000111100010…
…10011101010100
312020011012122010
410132022131110
5123201003040
611235504220
71600424412
oct436123524
9166135563
1075016020
1139387712
1221158070
13127069a1
149d6a2b2
1568bbe80
hex478a754

75016020 has 48 divisors (see below), whose sum is σ = 215728128. Its totient is φ = 19463040.

The previous prime is 75016003. The next prime is 75016021. The reversal of 75016020 is 2061057.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75016021) 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 15 ways as a sum of consecutive naturals, for example, 14676 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (4494336).

Almost surely, 275016020 is an apocalyptic number.

It is an amenable number.

75016020 is an abundant number, since it is smaller than the sum of its proper divisors (140712108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75016020 is a wasteful number, since it uses less digits than its factorization.

75016020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33840 (or 33838 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 75016020 is about 8661.1789035904. The cubic root of 75016020 is about 421.7463567161.

Adding to 75016020 its reverse (2061057), we get a palindrome (77077077).

The spelling of 75016020 in words is "seventy-five million, sixteen thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 33791 67582 101373 135164 168955 202746 337910 405492 506865 675820 1013730 1250267 2027460 2500534 3750801 5001068 6251335 7501602 12502670 15003204 18754005 25005340 37508010 75016020