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42715460 = 2252135773
BaseRepresentation
bin1010001011110…
…0100101000100
32222101011121002
42202330211010
541413343320
64123312432
71026034604
oct242744504
988334532
1042715460
1122125837
121237b718
138b07828
14595cc04
153b3b675
hex28bc944

42715460 has 12 divisors (see below), whose sum is σ = 89702508. Its totient is φ = 17086176.

The previous prime is 42715459. The next prime is 42715487. The reversal of 42715460 is 6451724.

It can be written as a sum of positive squares in 2 ways, for example, as 9721924 + 32993536 = 3118^2 + 5744^2 .

It is a super-2 number, since 2×427154602 = 3649221046023200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067867 + ... + 1067906.

It is an arithmetic number, because the mean of its divisors is an integer number (7475209).

Almost surely, 242715460 is an apocalyptic number.

It is an amenable number.

42715460 is an abundant number, since it is smaller than the sum of its proper divisors (46987048).

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

42715460 is a wasteful number, since it uses less digits than its factorization.

42715460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135782 (or 2135780 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 42715460 is about 6535.7065417597. The cubic root of 42715460 is about 349.5653379714.

The spelling of 42715460 in words is "forty-two million, seven hundred fifteen thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 2135773 4271546 8543092 10678865 21357730 42715460