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42810774 = 2323310223
BaseRepresentation
bin1010001101001…
…1110110010110
32222120000100020
42203103312112
541424421044
64125330010
71026612516
oct243236626
988500306
1042810774
1122190406
1212406906
138b3c026
145985846
153b59a19
hex28d3d96

42810774 has 16 divisors (see below), whose sum is σ = 89344512. Its totient is φ = 13649768.

The previous prime is 42810773. The next prime is 42810787. The reversal of 42810774 is 47701824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42810773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154974 + ... + 155249.

It is an arithmetic number, because the mean of its divisors is an integer number (5584032).

Almost surely, 242810774 is an apocalyptic number.

42810774 is an abundant number, since it is smaller than the sum of its proper divisors (46533738).

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

42810774 is a wasteful number, since it uses less digits than its factorization.

42810774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310251.

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 42810774 is about 6542.9942686816. The cubic root of 42810774 is about 349.8251480367.

The spelling of 42810774 in words is "forty-two million, eight hundred ten thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 23 46 69 138 310223 620446 930669 1861338 7135129 14270258 21405387 42810774