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85342190280 = 233517317183229
BaseRepresentation
bin100111101111011001…
…0100111101011001000
322011021122101110101020
41033132302213223020
52344240100042110
6103112231152440
76110600435244
oct1173662475310
9264248343336
1085342190280
1133214494776
1214658b15720
138080b43c59
1441b8473424
1523474b9d70
hex13deca7ac8

85342190280 has 512 divisors, whose sum is σ = 288446054400. Its totient is φ = 20101939200.

The previous prime is 85342190279. The next prime is 85342190287. The reversal of 85342190280 is 8209124358.

It is not an unprimeable number, because it can be changed into a prime (85342190287) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 372673206 + ... + 372673434.

It is an arithmetic number, because the mean of its divisors is an integer number (563371200).

Almost surely, 285342190280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85342190280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144223027200).

85342190280 is an abundant number, since it is smaller than the sum of its proper divisors (203103864120).

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

85342190280 is a wasteful number, since it uses less digits than its factorization.

85342190280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 85342190280 in words is "eighty-five billion, three hundred forty-two million, one hundred ninety thousand, two hundred eighty".