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72008229 = 3167143729
BaseRepresentation
bin1000100101011…
…00001000100101
312000111101201110
410102230020211
5121413230404
611051215233
71533026346
oct422541045
9160441643
1072008229
1137712937
1220147519
1311bc2927
1497c60cd
1564c5b89
hex44ac225

72008229 has 8 divisors (see below), whose sum is σ = 96586560. Its totient is φ = 47717696.

The previous prime is 72008221. The next prime is 72008329. The reversal of 72008229 is 92280027.

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 72008229 - 23 = 72008221 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72008196 and 72008205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72008221) 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, 71364 + ... + 72365.

It is an arithmetic number, because the mean of its divisors is an integer number (12073320).

Almost surely, 272008229 is an apocalyptic number.

It is an amenable number.

72008229 is a deficient number, since it is larger than the sum of its proper divisors (24578331).

72008229 is a wasteful number, since it uses less digits than its factorization.

72008229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143899.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 72008229 is about 8485.7662588596. The cubic root of 72008229 is about 416.0326130897.

The spelling of 72008229 in words is "seventy-two million, eight thousand, two hundred twenty-nine".

Divisors: 1 3 167 501 143729 431187 24002743 72008229