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42653471 = 72870479
BaseRepresentation
bin1010001010110…
…1011100011111
32222021000120012
42202231130133
541404402341
64122113435
71025356100
oct242553437
988230505
1042653471
1122093203
121234b87b
138ab5553
1459443a7
153b280eb
hex28ad71f

42653471 has 6 divisors (see below), whose sum is σ = 49617360. Its totient is φ = 36560076.

The previous prime is 42653467. The next prime is 42653483. The reversal of 42653471 is 17435624.

It is not a de Polignac number, because 42653471 - 22 = 42653467 is a prime.

It is a super-3 number, since 3×426534713 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42653441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 435191 + ... + 435288.

It is an arithmetic number, because the mean of its divisors is an integer number (8269560).

Almost surely, 242653471 is an apocalyptic number.

42653471 is a deficient number, since it is larger than the sum of its proper divisors (6963889).

42653471 is an equidigital number, since it uses as much as digits as its factorization.

42653471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870493 (or 870486 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 42653471 is about 6530.9624864946. The cubic root of 42653471 is about 349.3961588158.

The spelling of 42653471 in words is "forty-two million, six hundred fifty-three thousand, four hundred seventy-one".

Divisors: 1 7 49 870479 6093353 42653471