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108452513421 = 32717293345607
BaseRepresentation
bin110010100000001000…
…1100000011010001101
3101100221020112111212100
41211000101200122031
53234102320412141
6121453345425313
710556361103530
oct1450021403215
9340836474770
10108452513421
1141aa368658a
121902863b239
13a2c4a1c585
14536b87ca17
152c4b31d0b6
hex194046068d

108452513421 has 48 divisors (see below), whose sum is σ = 190211583744. Its totient is φ = 58128164352.

The previous prime is 108452513359. The next prime is 108452513441. The reversal of 108452513421 is 124315254801.

108452513421 is a `hidden beast` number, since 1 + 0 + 84 + 525 + 1 + 34 + 21 = 666.

It is not a de Polignac number, because 108452513421 - 27 = 108452513293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108452513441) 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 47 ways as a sum of consecutive naturals, for example, 141000 + ... + 486606.

It is an arithmetic number, because the mean of its divisors is an integer number (3962741328).

Almost surely, 2108452513421 is an apocalyptic number.

It is an amenable number.

108452513421 is a deficient number, since it is larger than the sum of its proper divisors (81759070323).

108452513421 is a wasteful number, since it uses less digits than its factorization.

108452513421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345930 (or 345927 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 108452513421 in words is "one hundred eight billion, four hundred fifty-two million, five hundred thirteen thousand, four hundred twenty-one".

Divisors: 1 3 7 9 17 21 51 63 119 153 293 357 879 1071 2051 2637 4981 6153 14943 18459 34867 44829 104601 313803 345607 1036821 2419249 3110463 5875319 7257747 17625957 21773241 41127233 52877871 101262851 123381699 303788553 370145097 708839957 911365659 1721468467 2126519871 5164405401 6379559613 12050279269 15493216203 36150837807 108452513421