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242065317 = 31323421641
BaseRepresentation
bin11100110110110…
…01111110100101
3121212111012012010
432123121332211
5443432042232
640004144433
75666343534
oct1633317645
9555435163
10242065317
1111470428a
1269098119
133b1c4c20
142421231b
15163b80cc
hexe6d9fa5

242065317 has 32 divisors (see below), whose sum is σ = 364121856. Its totient is φ = 141926400.

The previous prime is 242065289. The next prime is 242065333. The reversal of 242065317 is 713560242.

It is not a de Polignac number, because 242065317 - 26 = 242065253 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242065357) 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, 377317 + ... + 377957.

It is an arithmetic number, because the mean of its divisors is an integer number (11378808).

Almost surely, 2242065317 is an apocalyptic number.

It is an amenable number.

242065317 is a deficient number, since it is larger than the sum of its proper divisors (122056539).

242065317 is a wasteful number, since it uses less digits than its factorization.

242065317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 242065317 is about 15558.4484123578. The cubic root of 242065317 is about 623.2240287685.

The spelling of 242065317 in words is "two hundred forty-two million, sixty-five thousand, three hundred seventeen".

Divisors: 1 3 13 23 39 69 299 421 641 897 1263 1923 5473 8333 9683 14743 16419 24999 29049 44229 125879 191659 269861 377637 574977 809583 3508193 6206803 10524579 18620409 80688439 242065317