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87226205 = 5113742863
BaseRepresentation
bin1010011001011…
…11011101011101
320002010112212012
411030233131131
5134312214310
612353321005
72106260543
oct514573535
9202115765
1087226205
1145267380
1225266165
13150c0551
14b827d93
1579cec05
hex532f75d

87226205 has 16 divisors (see below), whose sum is σ = 117275904. Its totient is φ = 61721280.

The previous prime is 87226199. The next prime is 87226213. The reversal of 87226205 is 50262278.

It is not a de Polignac number, because 87226205 - 28 = 87225949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19397 + ... + 23466.

It is an arithmetic number, because the mean of its divisors is an integer number (7329744).

Almost surely, 287226205 is an apocalyptic number.

It is an amenable number.

87226205 is a deficient number, since it is larger than the sum of its proper divisors (30049699).

87226205 is a wasteful number, since it uses less digits than its factorization.

87226205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42916.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 87226205 is about 9339.4970421324. The cubic root of 87226205 is about 443.4884624295.

The spelling of 87226205 in words is "eighty-seven million, two hundred twenty-six thousand, two hundred five".

Divisors: 1 5 11 37 55 185 407 2035 42863 214315 471493 1585931 2357465 7929655 17445241 87226205