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85538201 = 712219743
BaseRepresentation
bin1010001100100…
…11010110011001
312221221210100112
411012103112121
5133344210301
612253214105
72056030340
oct506232631
9187853315
1085538201
1144314131
1224791335
131494c128
14b508b57
1577999bb
hex5193599

85538201 has 4 divisors (see below), whose sum is σ = 97757952. Its totient is φ = 73318452.

The previous prime is 85538147. The next prime is 85538221. The reversal of 85538201 is 10283558.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85538201 - 226 = 18429337 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a zygodrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (85538221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6109865 + ... + 6109878.

It is an arithmetic number, because the mean of its divisors is an integer number (24439488).

Almost surely, 285538201 is an apocalyptic number.

It is an amenable number.

85538201 is a deficient number, since it is larger than the sum of its proper divisors (12219751).

85538201 is a wasteful number, since it uses less digits than its factorization.

85538201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12219750.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 85538201 is about 9248.6864472746. The cubic root of 85538201 is about 440.6090068873.

The spelling of 85538201 in words is "eighty-five million, five hundred thirty-eight thousand, two hundred one".

Divisors: 1 7 12219743 85538201