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85388308153 = 3371402918061
BaseRepresentation
bin100111110000110001…
…0100010111010111001
322011101212011111012121
41033201202202322321
52344333401330103
6103120555441241
76112000433551
oct1174142427271
9264355144177
1085388308153
1133238523815
1214670456221
13808a570335
1441c063a161
15234b5796bd
hex13e18a2eb9

85388308153 has 8 divisors (see below), whose sum is σ = 85652532680. Its totient is φ = 85124148480.

The previous prime is 85388308147. The next prime is 85388308193. The reversal of 85388308153 is 35180388358.

It can be written as a sum of positive squares in 4 ways, for example, as 1339340409 + 84048967744 = 36597^2 + 289912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85388308153 - 217 = 85388177081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85388308153.

It is not an unprimeable number, because it can be changed into a prime (85388308133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4718743 + ... + 4736803.

It is an arithmetic number, because the mean of its divisors is an integer number (10706566585).

Almost surely, 285388308153 is an apocalyptic number.

It is an amenable number.

85388308153 is a deficient number, since it is larger than the sum of its proper divisors (264224527).

85388308153 is a wasteful number, since it uses less digits than its factorization.

85388308153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32427.

The product of its (nonzero) digits is 2764800, while the sum is 52.

The spelling of 85388308153 in words is "eighty-five billion, three hundred eighty-eight million, three hundred eight thousand, one hundred fifty-three".

Divisors: 1 337 14029 18061 4727773 6086557 253377769 85388308153