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85206030 = 23571323259
BaseRepresentation
bin1010001010000…
…10010000001110
312221022220200220
411011002100032
5133303043110
612242132210
72053145040
oct505022016
9187286626
1085206030
1144107608
1224651066
1314863b90
14b45da90
157731370
hex514240e

85206030 has 192 divisors, whose sum is σ = 267563520. Its totient is φ = 16904448.

The previous prime is 85206001. The next prime is 85206041. The reversal of 85206030 is 3060258.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1444141 + ... + 1444199.

It is an arithmetic number, because the mean of its divisors is an integer number (1393560).

Almost surely, 285206030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85206030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133781760).

85206030 is an abundant number, since it is smaller than the sum of its proper divisors (182357490).

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

85206030 is a wasteful number, since it uses less digits than its factorization.

85206030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 85206030 is about 9230.7112402025. The cubic root of 85206030 is about 440.0379271714.

Adding to 85206030 its reverse (3060258), we get a palindrome (88266288).

The spelling of 85206030 in words is "eighty-five million, two hundred six thousand, thirty".