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75116077 = 281267317
BaseRepresentation
bin1000111101000…
…10111000101101
312020100021212221
410132202320231
5123212203302
611241555341
71601322211
oct436427055
9166307787
1075116077
1139445903
12211a5b51
13127403aa
149d94941
1568db937
hex47a2e2d

75116077 has 4 divisors (see below), whose sum is σ = 75383676. Its totient is φ = 74848480.

The previous prime is 75116057. The next prime is 75116113. The reversal of 75116077 is 77061157.

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

It can be written as a sum of positive squares in 2 ways, for example, as 30680521 + 44435556 = 5539^2 + 6666^2 .

It is a cyclic number.

It is not a de Polignac number, because 75116077 - 219 = 74591789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75116057) 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, 133378 + ... + 133939.

It is an arithmetic number, because the mean of its divisors is an integer number (18845919).

Almost surely, 275116077 is an apocalyptic number.

It is an amenable number.

75116077 is a deficient number, since it is larger than the sum of its proper divisors (267599).

75116077 is a wasteful number, since it uses less digits than its factorization.

75116077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267598.

The product of its (nonzero) digits is 10290, while the sum is 34.

The square root of 75116077 is about 8666.9531555213. The cubic root of 75116077 is about 421.9337830261.

The spelling of 75116077 in words is "seventy-five million, one hundred sixteen thousand, seventy-seven".

Divisors: 1 281 267317 75116077