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105444404452 = 22239731137993
BaseRepresentation
bin110001000110011111…
…0011110110011100100
3101002011121020202010001
41202030332132303210
53211422231420302
6120235051311044
710422003435532
oct1421476366344
9332147222101
10105444404452
114079a687812
121852914b484
139c3575913a
145164165152
152b221c6787
hex188cf9ece4

105444404452 has 48 divisors (see below), whose sum is σ = 195166363392. Its totient is φ = 49748244480.

The previous prime is 105444404441. The next prime is 105444404467. The reversal of 105444404452 is 254404444501.

It is a super-2 number, since 2×1054444044522 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2756368 + ... + 2794360.

It is an arithmetic number, because the mean of its divisors is an integer number (4065965904).

Almost surely, 2105444404452 is an apocalyptic number.

It is an amenable number.

105444404452 is a deficient number, since it is larger than the sum of its proper divisors (89721958940).

105444404452 is a wasteful number, since it uses less digits than its factorization.

105444404452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38428 (or 38426 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 105444404452 its reverse (254404444501), we get a palindrome (359848848953).

The spelling of 105444404452 in words is "one hundred five billion, four hundred forty-four million, four hundred four thousand, four hundred fifty-two".

Divisors: 1 2 4 23 46 92 97 194 311 388 622 1244 2231 4462 7153 8924 14306 28612 30167 37993 60334 75986 120668 151972 693841 873839 1387682 1747678 2775364 3495356 3685321 7370642 11815823 14741284 23631646 47263292 84762383 169524766 271763929 339049532 543527858 1087055716 1146134831 2292269662 4584539324 26361101113 52722202226 105444404452