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42125108 = 2216136529
BaseRepresentation
bin1010000010110…
…0011100110100
32221021011210012
42200230130310
541241000413
64102515352
71021025504
oct240543464
987234705
1042125108
1121862243
1212135b58
13895bbcc
145847a04
153a717a8
hex282c734

42125108 has 12 divisors (see below), whose sum is σ = 73775940. Its totient is φ = 21046272.

The previous prime is 42125107. The next prime is 42125117. The reversal of 42125108 is 80152124.

It can be written as a sum of positive squares in 2 ways, for example, as 13630864 + 28494244 = 3692^2 + 5338^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3188 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (6147995).

Almost surely, 242125108 is an apocalyptic number.

It is an amenable number.

42125108 is a deficient number, since it is larger than the sum of its proper divisors (31650832).

42125108 is a wasteful number, since it uses less digits than its factorization.

42125108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146 (or 8144 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 42125108 is about 6490.3858128774. The cubic root of 42125108 is about 347.9474642145.

The spelling of 42125108 in words is "forty-two million, one hundred twenty-five thousand, one hundred eight".

Divisors: 1 2 4 1613 3226 6452 6529 13058 26116 10531277 21062554 42125108