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42453105 = 353191297
BaseRepresentation
bin1010000111110…
…0100001110001
32221212211201020
42201330201301
541331444410
64113530053
71023562662
oct241744161
987784636
1042453105
1121a66712
1212273929
138a452a6
1458d1369
153ad8a70
hex287c871

42453105 has 16 divisors (see below), whose sum is σ = 70116864. Its totient is φ = 21911040.

The previous prime is 42453017. The next prime is 42453107. The reversal of 42453105 is 50135424.

It is not a de Polignac number, because 42453105 - 28 = 42452849 is a prime.

It is a super-2 number, since 2×424531052 = 3604532248282050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42453107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45184 + ... + 46113.

It is an arithmetic number, because the mean of its divisors is an integer number (4382304).

Almost surely, 242453105 is an apocalyptic number.

It is an amenable number.

42453105 is a deficient number, since it is larger than the sum of its proper divisors (27663759).

42453105 is a wasteful number, since it uses less digits than its factorization.

42453105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91336.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 42453105 is about 6515.6047301843. The cubic root of 42453105 is about 348.8482001441.

Adding to 42453105 its reverse (50135424), we get a palindrome (92588529).

The spelling of 42453105 in words is "forty-two million, four hundred fifty-three thousand, one hundred five".

Divisors: 1 3 5 15 31 93 155 465 91297 273891 456485 1369455 2830207 8490621 14151035 42453105