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75686201 = 293770537
BaseRepresentation
bin1001000001011…
…10000100111001
312021102020221122
410200232010321
5123333424301
611302115025
71606215323
oct440560471
9167366848
1075686201
11397a5188
122141ba75
13128aca46
14a0a2613
1569a081b
hex482e139

75686201 has 8 divisors (see below), whose sum is σ = 80413320. Its totient is φ = 71100288.

The previous prime is 75686197. The next prime is 75686209. The reversal of 75686201 is 10268657.

It can be written as a sum of positive squares in 4 ways, for example, as 47596201 + 28090000 = 6899^2 + 5300^2 .

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 75686201 - 22 = 75686197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75686209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34196 + ... + 36341.

It is an arithmetic number, because the mean of its divisors is an integer number (10051665).

Almost surely, 275686201 is an apocalyptic number.

It is an amenable number.

75686201 is a deficient number, since it is larger than the sum of its proper divisors (4727119).

75686201 is a wasteful number, since it uses less digits than its factorization.

75686201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70603.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 75686201 is about 8699.7816639270. The cubic root of 75686201 is about 422.9985729860.

The spelling of 75686201 in words is "seventy-five million, six hundred eighty-six thousand, two hundred one".

Divisors: 1 29 37 1073 70537 2045573 2609869 75686201