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75012741 = 3219438671
BaseRepresentation
bin1000111100010…
…01101010000101
312020011001010200
410132021222011
5123200401431
611235441113
71600412016
oct436115205
9166131120
1075012741
1139385201
1221156199
131270534b
149d6900d
1568baee6
hex4789a85

75012741 has 12 divisors (see below), whose sum is σ = 114054720. Its totient is φ = 47376360.

The previous prime is 75012733. The next prime is 75012761. The reversal of 75012741 is 14721057.

It is not a de Polignac number, because 75012741 - 23 = 75012733 is a prime.

It is a super-2 number, since 2×750127412 = 11253822624666162, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75012701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219165 + ... + 219506.

It is an arithmetic number, because the mean of its divisors is an integer number (9504560).

Almost surely, 275012741 is an apocalyptic number.

It is an amenable number.

75012741 is a deficient number, since it is larger than the sum of its proper divisors (39041979).

75012741 is a wasteful number, since it uses less digits than its factorization.

75012741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438696 (or 438693 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 75012741 is about 8660.9896085840. The cubic root of 75012741 is about 421.7402116889.

Adding to 75012741 its reverse (14721057), we get a palindrome (89733798).

The spelling of 75012741 in words is "seventy-five million, twelve thousand, seven hundred forty-one".

Divisors: 1 3 9 19 57 171 438671 1316013 3948039 8334749 25004247 75012741