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42769580 = 2257305497
BaseRepresentation
bin1010001100100…
…1110010101100
32222110220211112
42203021302230
541422111310
64124411152
71026351440
oct243116254
988426745
1042769580
1122162467
12123a6ab8
138b26359
145974820
153b4c705
hex28c9cac

42769580 has 24 divisors (see below), whose sum is σ = 102647328. Its totient is φ = 14663808.

The previous prime is 42769567. The next prime is 42769583. The reversal of 42769580 is 8596724.

It is not an unprimeable number, because it can be changed into a prime (42769583) 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, 152609 + ... + 152888.

It is an arithmetic number, because the mean of its divisors is an integer number (4276972).

Almost surely, 242769580 is an apocalyptic number.

It is an amenable number.

42769580 is an abundant number, since it is smaller than the sum of its proper divisors (59877748).

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

42769580 is a wasteful number, since it uses less digits than its factorization.

42769580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305513 (or 305511 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 42769580 is about 6539.8455639258. The cubic root of 42769580 is about 349.7129074297.

It can be divided in two parts, 427 and 69580, that added together give a palindrome (70007).

The spelling of 42769580 in words is "forty-two million, seven hundred sixty-nine thousand, five hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 305497 610994 1221988 1527485 2138479 3054970 4276958 6109940 8553916 10692395 21384790 42769580