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75068971 = 502114951
BaseRepresentation
bin1000111100101…
…11011000101011
312020020220021021
410132113120223
5123204201341
611240553311
71601034655
oct436273053
9166226237
1075068971
113941347a
1221182837
1312724b13
149d816d5
1568cc9d1
hex479762b

75068971 has 4 divisors (see below), whose sum is σ = 75088944. Its totient is φ = 75049000.

The previous prime is 75068911. The next prime is 75068977. The reversal of 75068971 is 17986057.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75068971 - 211 = 75066923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75068977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2455 + ... + 12496.

It is an arithmetic number, because the mean of its divisors is an integer number (18772236).

Almost surely, 275068971 is an apocalyptic number.

75068971 is a deficient number, since it is larger than the sum of its proper divisors (19973).

75068971 is a wasteful number, since it uses less digits than its factorization.

75068971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19972.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 75068971 is about 8664.2351653219. The cubic root of 75068971 is about 421.8455650318.

The spelling of 75068971 in words is "seventy-five million, sixty-eight thousand, nine hundred seventy-one".

Divisors: 1 5021 14951 75068971