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72116895 = 354807793
BaseRepresentation
bin1000100110001…
…10101010011111
312000200220210010
410103012222133
5121430220040
611053414303
71533661224
oct423065237
9160626703
1072116895
1137787544
122019a393
1311c30226
14981394b
1564e7e80
hex44c6a9f

72116895 has 8 divisors (see below), whose sum is σ = 115387056. Its totient is φ = 38462336.

The previous prime is 72116893. The next prime is 72116897. The reversal of 72116895 is 59861127.

It is an interprime number because it is at equal distance from previous prime (72116893) and next prime (72116897).

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 72116895 - 21 = 72116893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72116893) 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, 2403882 + ... + 2403911.

It is an arithmetic number, because the mean of its divisors is an integer number (14423382).

Almost surely, 272116895 is an apocalyptic number.

72116895 is a deficient number, since it is larger than the sum of its proper divisors (43270161).

72116895 is a wasteful number, since it uses less digits than its factorization.

72116895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807801.

The product of its digits is 30240, while the sum is 39.

The square root of 72116895 is about 8492.1666846571. The cubic root of 72116895 is about 416.2417830625.

The spelling of 72116895 in words is "seventy-two million, one hundred sixteen thousand, eight hundred ninety-five".

Divisors: 1 3 5 15 4807793 14423379 24038965 72116895