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85311211358 = 2139631486331
BaseRepresentation
bin100111101110011110…
…0011100011101011110
322011012111002120021202
41033130330130131132
52344204132230413
6103105203155502
76110043221552
oct1173474343536
9264174076252
1085311211358
11331a8a5585a
121464a675b92
1380775b8529
1441b42cb862
1523448eae58
hex13dcf1c75e

85311211358 has 16 divisors (see below), whose sum is σ = 129091966080. Its totient is φ = 42281530200.

The previous prime is 85311211339. The next prime is 85311211411.

85311211358 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67748 + ... + 418583.

It is an arithmetic number, because the mean of its divisors is an integer number (8068247880).

Almost surely, 285311211358 is an apocalyptic number.

85311211358 is a deficient number, since it is larger than the sum of its proper divisors (43780754722).

85311211358 is a wasteful number, since it uses less digits than its factorization.

85311211358 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487103.

The product of its digits is 28800, while the sum is 38.

It can be divided in two parts, 853112 and 11358, that multiplied together give a square (9689646096 = 984362).

The spelling of 85311211358 in words is "eighty-five billion, three hundred eleven million, two hundred eleven thousand, three hundred fifty-eight".

Divisors: 1 2 139 278 631 1262 87709 175418 486331 972662 67600009 135200018 306874861 613749722 42655605679 85311211358