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42274165 = 537228509
BaseRepresentation
bin1010000101000…
…0110101110101
32221112202020211
42201100311311
541310233130
64110025421
71022216203
oct241206565
987482224
1042274165
112195422a
12121a8271
1389b19cb
145886073
153aa0a2a
hex2850d75

42274165 has 8 divisors (see below), whose sum is σ = 52100280. Its totient is φ = 32905152.

The previous prime is 42274163. The next prime is 42274171. The reversal of 42274165 is 56147224.

It can be written as a sum of positive squares in 4 ways, for example, as 27227524 + 15046641 = 5218^2 + 3879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42274165 - 21 = 42274163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42274163) 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, 114070 + ... + 114439.

It is an arithmetic number, because the mean of its divisors is an integer number (6512535).

Almost surely, 242274165 is an apocalyptic number.

It is an amenable number.

42274165 is a deficient number, since it is larger than the sum of its proper divisors (9826115).

42274165 is a wasteful number, since it uses less digits than its factorization.

42274165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228551.

The product of its digits is 13440, while the sum is 31.

The square root of 42274165 is about 6501.8585804368. The cubic root of 42274165 is about 348.3573777246.

The spelling of 42274165 in words is "forty-two million, two hundred seventy-four thousand, one hundred sixty-five".

Divisors: 1 5 37 185 228509 1142545 8454833 42274165