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42653247 = 3713236793
BaseRepresentation
bin1010001010110…
…1011000111111
32222021000020220
42202231120333
541404400442
64122112423
71025355330
oct242553077
988230226
1042653247
112209301a
121234b713
138ab5410
145944287
153b27eec
hex28ad63f

42653247 has 32 divisors (see below), whose sum is σ = 73049088. Its totient is φ = 21517056.

The previous prime is 42653239. The next prime is 42653257. The reversal of 42653247 is 74235624.

It is not a de Polignac number, because 42653247 - 23 = 42653239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42653257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2883 + ... + 9675.

It is an arithmetic number, because the mean of its divisors is an integer number (2282784).

Almost surely, 242653247 is an apocalyptic number.

42653247 is a deficient number, since it is larger than the sum of its proper divisors (30395841).

42653247 is a wasteful number, since it uses less digits than its factorization.

42653247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839.

The product of its digits is 40320, while the sum is 33.

The square root of 42653247 is about 6530.9453373918. The cubic root of 42653247 is about 349.3955471822.

The spelling of 42653247 in words is "forty-two million, six hundred fifty-three thousand, two hundred forty-seven".

Divisors: 1 3 7 13 21 23 39 69 91 161 273 299 483 897 2093 6279 6793 20379 47551 88309 142653 156239 264927 468717 618163 1093673 1854489 2031107 3281019 6093321 14217749 42653247