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42790974 = 2331230059
BaseRepresentation
bin1010001100111…
…1000000111110
32222112000011220
42203033000332
541423302344
64125054210
71026501012
oct243170076
988460156
1042790974
1122177546
12123b7366
138b33005
14597c542
153b53c19
hex28cf03e

42790974 has 16 divisors (see below), whose sum is σ = 88343040. Its totient is φ = 13803480.

The previous prime is 42790967. The next prime is 42790987. The reversal of 42790974 is 47909724.

42790974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 114844 + ... + 115215.

It is an arithmetic number, because the mean of its divisors is an integer number (5521440).

Almost surely, 242790974 is an apocalyptic number.

42790974 is an abundant number, since it is smaller than the sum of its proper divisors (45552066).

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

42790974 is a wasteful number, since it uses less digits than its factorization.

42790974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230095.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 42790974 is about 6541.4810249667. The cubic root of 42790974 is about 349.7712082967.

The spelling of 42790974 in words is "forty-two million, seven hundred ninety thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 31 62 93 186 230059 460118 690177 1380354 7131829 14263658 21395487 42790974