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42195908 = 2258717971
BaseRepresentation
bin1010000011110…
…1101111000100
32221101202220102
42200331233010
541300232113
64104223232
71021442066
oct240755704
987352812
1042195908
1121900457
121216ab18
1389851c1
145865736
153a87758
hex283dbc4

42195908 has 12 divisors (see below), whose sum is σ = 73972752. Its totient is φ = 21060840.

The previous prime is 42195883. The next prime is 42195913. The reversal of 42195908 is 80959124.

42195908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6638 + ... + 11333.

It is an arithmetic number, because the mean of its divisors is an integer number (6164396).

Almost surely, 242195908 is an apocalyptic number.

It is an amenable number.

42195908 is a deficient number, since it is larger than the sum of its proper divisors (31776844).

42195908 is a wasteful number, since it uses less digits than its factorization.

42195908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18562 (or 18560 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 42195908 is about 6495.8377442790. The cubic root of 42195908 is about 348.1422877871.

It can be divided in two parts, 4 and 2195908, that added together give a palindrome (2195912).

The spelling of 42195908 in words is "forty-two million, one hundred ninety-five thousand, nine hundred eight".

Divisors: 1 2 4 587 1174 2348 17971 35942 71884 10548977 21097954 42195908