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105245408 = 25192947127
BaseRepresentation
bin1100100010111…
…10101011100000
321100001000120002
412101132223200
5203420323113
614235435132
72415366632
oct621365340
9240030502
10105245408
1154454484
122b2b5aa8
1318a5c1b8
14dd98a52
15938dc58
hex645eae0

105245408 has 96 divisors (see below), whose sum is σ = 232243200. Its totient is φ = 46738944.

The previous prime is 105245407. The next prime is 105245417. The reversal of 105245408 is 804542501.

It is a super-2 number, since 2×1052454082 = 22153191810172928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105245407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 828641 + ... + 828767.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2105245408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105245408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116121600).

105245408 is an abundant number, since it is smaller than the sum of its proper divisors (126997792).

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

105245408 is a wasteful number, since it uses less digits than its factorization.

105245408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 105245408 is about 10258.9184615144. The cubic root of 105245408 is about 472.1366548679.

Adding to 105245408 its reverse (804542501), we get a palindrome (909787909).

The spelling of 105245408 in words is "one hundred five million, two hundred forty-five thousand, four hundred eight".

Divisors: 1 2 4 8 16 19 29 32 38 47 58 76 94 116 127 152 188 232 254 304 376 464 508 551 608 752 893 928 1016 1102 1363 1504 1786 2032 2204 2413 2726 3572 3683 4064 4408 4826 5452 5969 7144 7366 8816 9652 10904 11938 14288 14732 17632 19304 21808 23876 25897 28576 29464 38608 43616 47752 51794 58928 69977 77216 95504 103588 113411 117856 139954 173101 191008 207176 226822 279908 346202 414352 453644 559816 692404 828704 907288 1119632 1384808 1814576 2239264 2769616 3288919 3629152 5539232 6577838 13155676 26311352 52622704 105245408