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85402318 = 261798861
BaseRepresentation
bin1010001011100…
…10001011001110
312221200212221211
411011302023032
5133330333233
612250245034
72054623231
oct505621316
9187625854
1085402318
1144231031
122472677a
1314902321
14b4b1418
15776e5cd
hex51722ce

85402318 has 16 divisors (see below), whose sum is σ = 131866560. Its totient is φ = 41464800.

The previous prime is 85402313. The next prime is 85402333. The reversal of 85402318 is 81320458.

It is a self number, because there is not a number n which added to its sum of digits gives 85402318.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85402313) 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 7 ways as a sum of consecutive naturals, for example, 5208 + ... + 14068.

It is an arithmetic number, because the mean of its divisors is an integer number (8241660).

Almost surely, 285402318 is an apocalyptic number.

85402318 is a deficient number, since it is larger than the sum of its proper divisors (46464242).

85402318 is a wasteful number, since it uses less digits than its factorization.

85402318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9003.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 85402318 is about 9241.3374573164. The cubic root of 85402318 is about 440.3755712054.

The spelling of 85402318 in words is "eighty-five million, four hundred two thousand, three hundred eighteen".

Divisors: 1 2 61 79 122 158 4819 8861 9638 17722 540521 700019 1081042 1400038 42701159 85402318