Search a number
-
+
54385000566 = 231323292710357
BaseRepresentation
bin110010101001100110…
…010100000001110110
312012101011222021120020
4302221212110001312
51342340030004231
640552323150010
73633465606651
oct625146240166
9165334867506
1054385000566
1121078a07966
12a659515306
135189380710
1428bcc62898
151634819396
hexca9994076

54385000566 has 64 divisors (see below), whose sum is σ = 122283399168. Its totient is φ = 15999274368.

The previous prime is 54385000561. The next prime is 54385000603. The reversal of 54385000566 is 66500058345.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54385000561) 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, 5245860 + ... + 5256216.

It is an arithmetic number, because the mean of its divisors is an integer number (1910678112).

Almost surely, 254385000566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54385000566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61141699584).

54385000566 is an abundant number, since it is smaller than the sum of its proper divisors (67898398602).

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

54385000566 is a wasteful number, since it uses less digits than its factorization.

54385000566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13325.

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 54385000566 in words is "fifty-four billion, three hundred eighty-five million, five hundred sixty-six", and thus it is an aban number.

Divisors: 1 2 3 6 13 23 26 39 46 69 78 138 299 598 897 1794 2927 5854 8781 10357 17562 20714 31071 38051 62142 67321 76102 114153 134641 134642 201963 228306 238211 269282 403923 403926 476422 714633 807846 875173 1429266 1750346 2625519 3096743 5251038 6193486 9290229 18580458 30314939 60629878 90944817 181889634 394094207 697243597 788188414 1182282621 1394487194 2091730791 2364565242 4183461582 9064166761 18128333522 27192500283 54385000566