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75216113 = 728138239
BaseRepresentation
bin1000111101110…
…11010011110001
312020112101002222
410132323103301
5123223403423
611244050425
71602216650
oct436732361
9166471088
1075216113
1139503a85
1221233a15
1312776a9b
149dbd197
15690b3c8
hex47bb4f1

75216113 has 8 divisors (see below), whose sum is σ = 86269440. Its totient is φ = 64239840.

The previous prime is 75216107. The next prime is 75216133. The reversal of 75216113 is 31161257.

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

It is not a de Polignac number, because 75216113 - 212 = 75212017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75216103) 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, 17153 + ... + 21086.

It is an arithmetic number, because the mean of its divisors is an integer number (10783680).

Almost surely, 275216113 is an apocalyptic number.

It is an amenable number.

75216113 is a deficient number, since it is larger than the sum of its proper divisors (11053327).

75216113 is a wasteful number, since it uses less digits than its factorization.

75216113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38527.

The product of its digits is 1260, while the sum is 26.

The square root of 75216113 is about 8672.7223522952. The cubic root of 75216113 is about 422.1210036866.

The spelling of 75216113 in words is "seventy-five million, two hundred sixteen thousand, one hundred thirteen".

Divisors: 1 7 281 1967 38239 267673 10745159 75216113