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72103241 = 731332273
BaseRepresentation
bin1000100110000…
…11010101001001
312000200020001102
410103003111021
5121424300431
611053231145
71533603350
oct423032511
9160606042
1072103241
1137778261
12201924b5
1311c26c52
14980c997
1564e3dcb
hex44c3549

72103241 has 8 divisors (see below), whose sum is σ = 85062144. Its totient is φ = 59808960.

The previous prime is 72103231. The next prime is 72103243. The reversal of 72103241 is 14230127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72103241 - 214 = 72086857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72103243) 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 7 ways as a sum of consecutive naturals, for example, 165920 + ... + 166353.

It is an arithmetic number, because the mean of its divisors is an integer number (10632768).

Almost surely, 272103241 is an apocalyptic number.

It is an amenable number.

72103241 is a deficient number, since it is larger than the sum of its proper divisors (12958903).

72103241 is a wasteful number, since it uses less digits than its factorization.

72103241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332311.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 72103241 is about 8491.3627292679. The cubic root of 72103241 is about 416.2155121772.

Adding to 72103241 its reverse (14230127), we get a palindrome (86333368).

The spelling of 72103241 in words is "seventy-two million, one hundred three thousand, two hundred forty-one".

Divisors: 1 7 31 217 332273 2325911 10300463 72103241