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75144060 = 223252291823
BaseRepresentation
bin1000111101010…
…01101101111100
312020101201021100
410132221231330
5123214102220
611242333100
71601466615
oct436515574
9166351240
1075144060
1139464932
12211ba190
1312750054
149da0c0c
1568e4d90
hex47a9b7c

75144060 has 72 divisors (see below), whose sum is σ = 229057920. Its totient is φ = 19939968.

The previous prime is 75144049. The next prime is 75144061. The reversal of 75144060 is 6044157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75144061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40309 + ... + 42131.

It is an arithmetic number, because the mean of its divisors is an integer number (3181360).

Almost surely, 275144060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75144060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114528960).

75144060 is an abundant number, since it is smaller than the sum of its proper divisors (153913860).

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

75144060 is a wasteful number, since it uses less digits than its factorization.

75144060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067 (or 2062 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 75144060 is about 8668.5673556823. The cubic root of 75144060 is about 421.9861708667.

The spelling of 75144060 in words is "seventy-five million, one hundred forty-four thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 229 458 687 916 1145 1374 1823 2061 2290 2748 3435 3646 4122 4580 5469 6870 7292 8244 9115 10305 10938 13740 16407 18230 20610 21876 27345 32814 36460 41220 54690 65628 82035 109380 164070 328140 417467 834934 1252401 1669868 2087335 2504802 3757203 4174670 5009604 6262005 7514406 8349340 12524010 15028812 18786015 25048020 37572030 75144060