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75275472 = 24313711447
BaseRepresentation
bin1000111110010…
…01110011010000
312020122101112110
410133021303100
5123232303342
611245225320
71602555006
oct437116320
9166571473
1075275472
1139544638
1221262240
1312797acc
149dd6a76
15691dc9c
hex47c9cd0

75275472 has 40 divisors (see below), whose sum is σ = 195898176. Its totient is φ = 24906496.

The previous prime is 75275449. The next prime is 75275477. The reversal of 75275472 is 27457257.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 75275472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75275477) 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 7 ways as a sum of consecutive naturals, for example, 853 + ... + 12299.

Almost surely, 275275472 is an apocalyptic number.

It is an amenable number.

75275472 is an abundant number, since it is smaller than the sum of its proper divisors (120622704).

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

75275472 is a wasteful number, since it uses less digits than its factorization.

75275472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11595 (or 11589 counting only the distinct ones).

The product of its digits is 137200, while the sum is 39.

The square root of 75275472 is about 8676.1438438975. The cubic root of 75275472 is about 422.2320175423.

The spelling of 75275472 in words is "seventy-five million, two hundred seventy-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 137 274 411 548 822 1096 1644 2192 3288 6576 11447 22894 34341 45788 68682 91576 137364 183152 274728 549456 1568239 3136478 4704717 6272956 9409434 12545912 18818868 25091824 37637736 75275472