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42487270 = 257606961
BaseRepresentation
bin1010001000010…
…0110111100110
32221221120120121
42202010313212
541334043040
64114352154
71024064410
oct242046746
987846517
1042487270
1121a8a351
121228b65a
138a579c7
1458dd9b0
153ae3c4a
hex2884de6

42487270 has 16 divisors (see below), whose sum is σ = 87402528. Its totient is φ = 14567040.

The previous prime is 42487253. The next prime is 42487271. The reversal of 42487270 is 7278424.

It is a super-2 number, since 2×424872702 = 3610336224105800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42487271) 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, 303411 + ... + 303550.

It is an arithmetic number, because the mean of its divisors is an integer number (5462658).

Almost surely, 242487270 is an apocalyptic number.

42487270 is an abundant number, since it is smaller than the sum of its proper divisors (44915258).

42487270 is a wasteful number, since it uses less digits than its factorization.

42487270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606975.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 42487270 is about 6518.2259856498. The cubic root of 42487270 is about 348.9417559472.

The spelling of 42487270 in words is "forty-two million, four hundred eighty-seven thousand, two hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 606961 1213922 3034805 4248727 6069610 8497454 21243635 42487270