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42702237 = 3223206291
BaseRepresentation
bin1010001011100…
…1010110011101
32222100111110100
42202321112131
541412432422
64123131313
71025651214
oct242712635
988314410
1042702237
1122116906
1212373b39
138b017c6
14595807b
153b377ac
hex28b959d

42702237 has 12 divisors (see below), whose sum is σ = 64363104. Its totient is φ = 27230280.

The previous prime is 42702227. The next prime is 42702241. The reversal of 42702237 is 73220724.

42702237 is a `hidden beast` number, since 427 + 0 + 2 + 237 = 666.

It is not a de Polignac number, because 42702237 - 218 = 42440093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42702237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42702227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102939 + ... + 103352.

It is an arithmetic number, because the mean of its divisors is an integer number (5363592).

Almost surely, 242702237 is an apocalyptic number.

It is an amenable number.

42702237 is a deficient number, since it is larger than the sum of its proper divisors (21660867).

42702237 is a wasteful number, since it uses less digits than its factorization.

42702237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206320 (or 206317 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 42702237 is about 6534.6948666330. The cubic root of 42702237 is about 349.5292637607.

The spelling of 42702237 in words is "forty-two million, seven hundred two thousand, two hundred thirty-seven".

Divisors: 1 3 9 23 69 207 206291 618873 1856619 4744693 14234079 42702237