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72341712 = 24324112253
BaseRepresentation
bin1000100111111…
…01100011010000
312001010100011200
410103331203100
5122004413322
611102311200
71535615532
oct423754320
9161110150
1072341712
1137920443
1220288500
1311cab661
149871852
15653e8ac
hex44fd8d0

72341712 has 60 divisors (see below), whose sum is σ = 207411204. Its totient is φ = 23523840.

The previous prime is 72341707. The next prime is 72341719. The reversal of 72341712 is 21714327.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16451136 + 55890576 = 4056^2 + 7476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72341719) 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 11 ways as a sum of consecutive naturals, for example, 223 + ... + 12030.

Almost surely, 272341712 is an apocalyptic number.

72341712 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 72341712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103705602).

72341712 is an abundant number, since it is smaller than the sum of its proper divisors (135069492).

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

72341712 is a wasteful number, since it uses less digits than its factorization.

72341712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12308 (or 12299 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 72341712 is about 8505.3931126080. The cubic root of 72341712 is about 416.6738646934.

The spelling of 72341712 in words is "seventy-two million, three hundred forty-one thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 41 48 72 82 123 144 164 246 328 369 492 656 738 984 1476 1968 2952 5904 12253 24506 36759 49012 73518 98024 110277 147036 196048 220554 294072 441108 502373 588144 882216 1004746 1507119 1764432 2009492 3014238 4018984 4521357 6028476 8037968 9042714 12056952 18085428 24113904 36170856 72341712