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42650868 = 22313221031
BaseRepresentation
bin1010001010110…
…0110011110100
32222020212222210
42202230303310
541404311433
64122053420
71025345361
oct242546364
988225883
1042650868
1122091257
121234a270
138ab4300
145943468
153b27463
hex28accf4

42650868 has 36 divisors (see below), whose sum is σ = 107767968. Its totient is φ = 13122720.

The previous prime is 42650857. The next prime is 42650869. The reversal of 42650868 is 86805624.

42650868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42650869) 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 11 ways as a sum of consecutive naturals, for example, 8488 + ... + 12543.

Almost surely, 242650868 is an apocalyptic number.

It is an amenable number.

42650868 is an abundant number, since it is smaller than the sum of its proper divisors (65117100).

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

42650868 is a wasteful number, since it uses less digits than its factorization.

42650868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21064 (or 21049 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 42650868 is about 6530.7632019543. The cubic root of 42650868 is about 349.3890511746.

The spelling of 42650868 in words is "forty-two million, six hundred fifty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 169 338 507 676 1014 2028 21031 42062 63093 84124 126186 252372 273403 546806 820209 1093612 1640418 3280836 3554239 7108478 10662717 14216956 21325434 42650868