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42605480 = 2351065137
BaseRepresentation
bin1010001010000…
…1101110101000
32222011120201202
42202201232220
541401333410
64121103332
71025066141
oct242415650
988146652
1042605480
1122060145
1212327b48
138a99758
145930ac8
153b18ca5
hex28a1ba8

42605480 has 16 divisors (see below), whose sum is σ = 95862420. Its totient is φ = 17042176.

The previous prime is 42605461. The next prime is 42605483. The reversal of 42605480 is 8450624.

It can be written as a sum of positive squares in 2 ways, for example, as 42276004 + 329476 = 6502^2 + 574^2 .

It is not an unprimeable number, because it can be changed into a prime (42605483) by changing a digit.

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, 532529 + ... + 532608.

Almost surely, 242605480 is an apocalyptic number.

42605480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42605480 is an abundant number, since it is smaller than the sum of its proper divisors (53256940).

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

42605480 is a wasteful number, since it uses less digits than its factorization.

42605480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065148 (or 1065144 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 42605480 is about 6527.2873385504. The cubic root of 42605480 is about 349.2650701195.

The spelling of 42605480 in words is "forty-two million, six hundred five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1065137 2130274 4260548 5325685 8521096 10651370 21302740 42605480