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105641452 = 2272538987
BaseRepresentation
bin1100100101111…
…11010111101100
321100210010211101
412102333113230
5204021011302
614252132444
72421636400
oct622772754
9240703741
10105641452
11546a4a94
122b467124
1318b6a547
141005d100
15941b287
hex64bf5ec

105641452 has 18 divisors (see below), whose sum is σ = 215056212. Its totient is φ = 45274824.

The previous prime is 105641449. The next prime is 105641453. The reversal of 105641452 is 254146501.

It is a super-2 number, since 2×1056414522 = 22320232761336608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 105641452.

It is not an unprimeable number, because it can be changed into a prime (105641453) 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 5 ways as a sum of consecutive naturals, for example, 269298 + ... + 269689.

Almost surely, 2105641452 is an apocalyptic number.

It is an amenable number.

105641452 is an abundant number, since it is smaller than the sum of its proper divisors (109414760).

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

105641452 is a wasteful number, since it uses less digits than its factorization.

105641452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539005 (or 538996 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 105641452 is about 10278.2027611835. The cubic root of 105641452 is about 472.7281385720.

Adding to 105641452 its reverse (254146501), we get a palindrome (359787953).

The spelling of 105641452 in words is "one hundred five million, six hundred forty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 49 98 196 538987 1077974 2155948 3772909 7545818 15091636 26410363 52820726 105641452