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72272353 = 211461743
BaseRepresentation
bin1000100111011…
…00100111100001
312000222211000211
410103230213201
5122000203403
611101014121
71535206366
oct423544741
9160884024
1072272353
113788331a
1220254341
1311c85c0a
14985446d
15652906d
hex44ec9e1

72272353 has 8 divisors (see below), whose sum is σ = 72870336. Its totient is φ = 71677200.

The previous prime is 72272351. The next prime is 72272393. The reversal of 72272353 is 35327227.

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 72272353 - 21 = 72272351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72272351) 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 7 ways as a sum of consecutive naturals, for example, 96900 + ... + 97642.

It is an arithmetic number, because the mean of its divisors is an integer number (9108792).

Almost surely, 272272353 is an apocalyptic number.

It is an amenable number.

72272353 is a deficient number, since it is larger than the sum of its proper divisors (597983).

72272353 is a wasteful number, since it uses less digits than its factorization.

72272353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 17640, while the sum is 31.

The square root of 72272353 is about 8501.3147806678. The cubic root of 72272353 is about 416.5406574336.

The spelling of 72272353 in words is "seventy-two million, two hundred seventy-two thousand, three hundred fifty-three".

Divisors: 1 211 461 743 97271 156773 342523 72272353