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85234530 = 2352841151
BaseRepresentation
bin1010001010010…
…01001101100010
312221101100210110
411011021031202
5133310001110
612242512150
72053324113
oct505111542
9187340713
1085234530
1144126a67
1224665656
1314873b44
14b46a20a
157739a20
hex5149362

85234530 has 16 divisors (see below), whose sum is σ = 204562944. Its totient is φ = 22729200.

The previous prime is 85234511. The next prime is 85234543. The reversal of 85234530 is 3543258.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2841151 = 85234530 / (8 + 5 + 2 + 3 + 4 + 5 + 3 + 0).

It is an unprimeable number.

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, 1420546 + ... + 1420605.

It is an arithmetic number, because the mean of its divisors is an integer number (12785184).

Almost surely, 285234530 is an apocalyptic number.

85234530 is an abundant number, since it is smaller than the sum of its proper divisors (119328414).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85234530 is a wasteful number, since it uses less digits than its factorization.

85234530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841161.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 85234530 is about 9232.2548708319. The cubic root of 85234530 is about 440.0869834918.

Adding to 85234530 its reverse (3543258), we get a palindrome (88777788).

The spelling of 85234530 in words is "eighty-five million, two hundred thirty-four thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2841151 5682302 8523453 14205755 17046906 28411510 42617265 85234530