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75267072 = 210328167
BaseRepresentation
bin1000111110001…
…11110000000000
312020121222000100
410133013300000
5123232021242
611245122400
71602521346
oct437076000
9166558010
1075267072
11395392a1
1221259400
131279403a
149dd3996
15691b54c
hex47c7c00

75267072 has 66 divisors (see below), whose sum is σ = 217358648. Its totient is φ = 25085952.

The previous prime is 75267001. The next prime is 75267079. The reversal of 75267072 is 27076257.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75267079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5133 + ... + 13299.

Almost surely, 275267072 is an apocalyptic number.

75267072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75267072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108679324).

75267072 is an abundant number, since it is smaller than the sum of its proper divisors (142091576).

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

75267072 is a wasteful number, since it uses less digits than its factorization.

75267072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193 (or 8172 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 75267072 is about 8675.6597443653. The cubic root of 75267072 is about 422.2163113156.

The spelling of 75267072 in words is "seventy-five million, two hundred sixty-seven thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1024 1152 1536 2304 3072 4608 8167 9216 16334 24501 32668 49002 65336 73503 98004 130672 147006 196008 261344 294012 392016 522688 588024 784032 1045376 1176048 1568064 2090752 2352096 3136128 4181504 4704192 6272256 8363008 9408384 12544512 18816768 25089024 37633536 75267072