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42879560 = 2354092621
BaseRepresentation
bin1010001110010…
…0101001001000
32222200111200212
42203210221020
541434121220
64131020252
71030320203
oct243445110
988614625
1042879560
1122228059
121243a688
138b64429
1459a293a
153b700c5
hex28e4a48

42879560 has 32 divisors (see below), whose sum is σ = 96751800. Its totient is φ = 17103360.

The previous prime is 42879533. The next prime is 42879587. The reversal of 42879560 is 6597824.

It is an interprime number because it is at equal distance from previous prime (42879533) and next prime (42879587).

It can be written as a sum of positive squares in 4 ways, for example, as 42797764 + 81796 = 6542^2 + 286^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15050 + ... + 17670.

Almost surely, 242879560 is an apocalyptic number.

42879560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42879560 is an abundant number, since it is smaller than the sum of its proper divisors (53872240).

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

42879560 is a wasteful number, since it uses less digits than its factorization.

42879560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3041 (or 3037 counting only the distinct ones).

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

The square root of 42879560 is about 6548.2486208146. The cubic root of 42879560 is about 350.0124077234.

The spelling of 42879560 in words is "forty-two million, eight hundred seventy-nine thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 409 818 1636 2045 2621 3272 4090 5242 8180 10484 13105 16360 20968 26210 52420 104840 1071989 2143978 4287956 5359945 8575912 10719890 21439780 42879560