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75061716 = 22331120113
BaseRepresentation
bin1000111100101…
…01100111010100
312020020112022120
410132111213110
5123203433331
611240455540
71601004552
oct436254724
9166215276
1075061716
1139408a84
122117a5b0
1312721722
149d7cbd2
1568ca796
hex47959d4

75061716 has 24 divisors (see below), whose sum is σ = 175715904. Its totient is φ = 24938880.

The previous prime is 75061711. The next prime is 75061717. The reversal of 75061716 is 61716057.

It is a super-2 number, since 2×750617162 = 11268522417729312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75061711) 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, 6325 + ... + 13788.

It is an arithmetic number, because the mean of its divisors is an integer number (7321496).

Almost surely, 275061716 is an apocalyptic number.

It is an amenable number.

75061716 is an abundant number, since it is smaller than the sum of its proper divisors (100654188).

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

75061716 is a wasteful number, since it uses less digits than its factorization.

75061716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20431 (or 20429 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 75061716 is about 8663.8164800508. The cubic root of 75061716 is about 421.8319749154.

The spelling of 75061716 in words is "seventy-five million, sixty-one thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 12 311 622 933 1244 1866 3732 20113 40226 60339 80452 120678 241356 6255143 12510286 18765429 25020572 37530858 75061716