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85452025458 = 234310131310477
BaseRepresentation
bin100111110010101010…
…1100110111001110010
322011120022001122220210
41033211111212321302
52400001204303313
6103131153244550
76113403142362
oct1174525467162
9264508048823
1085452025458
1133270493548
1214689863756
13809a81c297
1441c8ca49a2
152351e639c3
hex13e5566e72

85452025458 has 64 divisors (see below), whose sum is σ = 177191194752. Its totient is φ = 27455500800.

The previous prime is 85452025453. The next prime is 85452025493.

85452025458 is nontrivially palindromic in base 10.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85452025453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8150916 + ... + 8161392.

It is an arithmetic number, because the mean of its divisors is an integer number (2768612418).

Almost surely, 285452025458 is an apocalyptic number.

85452025458 is an abundant number, since it is smaller than the sum of its proper divisors (91739169294).

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

85452025458 is a wasteful number, since it uses less digits than its factorization.

85452025458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939.

The product of its (nonzero) digits is 2560000, while the sum is 48.

It can be divided in two parts, 854520 and 25458, that added together give a palindrome (879978).

The spelling of 85452025458 in words is "eighty-five billion, four hundred fifty-two million, twenty-five thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 43 86 101 129 202 258 303 313 606 626 939 1878 4343 8686 10477 13029 13459 20954 26058 26918 31431 31613 40377 62862 63226 80754 94839 189678 450511 901022 1058177 1351533 1359359 2116354 2703066 2718718 3174531 3279301 4078077 6349062 6558602 8156154 9837903 19675806 45501611 91003222 136504833 141009943 273009666 282019886 331209401 423029829 662418802 846059658 993628203 1987256406 14242004243 28484008486 42726012729 85452025458