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105425164454 = 21719163196849
BaseRepresentation
bin110001000101111010…
…1000101100010100110
3101002010021001020210112
41202023311011202212
53211402320230304
6120233123053022
710421351053331
oct1421365054246
9332107036715
10105425164454
114078a836495
1218522811172
139c3178091c
145161797618
152b20675b6e
hex188bd458a6

105425164454 has 16 divisors (see below), whose sum is σ = 176252598000. Its totient is φ = 47000692224.

The previous prime is 105425164433. The next prime is 105425164459. The reversal of 105425164454 is 454461524501.

It is a super-2 number, since 2×1054251644542 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105425164459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81597779 + ... + 81599070.

It is an arithmetic number, because the mean of its divisors is an integer number (11015787375).

Almost surely, 2105425164454 is an apocalyptic number.

105425164454 is a deficient number, since it is larger than the sum of its proper divisors (70827433546).

105425164454 is a wasteful number, since it uses less digits than its factorization.

105425164454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163196887.

The product of its (nonzero) digits is 384000, while the sum is 41.

Adding to 105425164454 its reverse (454461524501), we get a palindrome (559886688955).

The spelling of 105425164454 in words is "one hundred five billion, four hundred twenty-five million, one hundred sixty-four thousand, four hundred fifty-four".

Divisors: 1 2 17 19 34 38 323 646 163196849 326393698 2774346433 3100740131 5548692866 6201480262 52712582227 105425164454