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72214301 = 617316217
BaseRepresentation
bin1000100110111…
…10011100011101
312000212212101202
410103132130131
5121441324201
611055445245
71534545215
oct423363435
9160785352
1072214301
1137843745
1220226825
1311c65673
14983b245
156516c6b
hex44de71d

72214301 has 8 divisors (see below), whose sum is σ = 74408184. Its totient is φ = 70053120.

The previous prime is 72214291. The next prime is 72214327. The reversal of 72214301 is 10341227.

It can be written as a sum of positive squares in 4 ways, for example, as 5808100 + 66406201 = 2410^2 + 8149^2 .

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 72214301 - 26 = 72214237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72214361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3656 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (9301023).

Almost surely, 272214301 is an apocalyptic number.

It is an amenable number.

72214301 is a deficient number, since it is larger than the sum of its proper divisors (2193883).

72214301 is a wasteful number, since it uses less digits than its factorization.

72214301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16351.

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

The square root of 72214301 is about 8497.8997993622. The cubic root of 72214301 is about 416.4291002728.

Adding to 72214301 its reverse (10341227), we get a palindrome (82555528).

The spelling of 72214301 in words is "seventy-two million, two hundred fourteen thousand, three hundred one".

Divisors: 1 61 73 4453 16217 989237 1183841 72214301