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389342365 = 5229340037
BaseRepresentation
bin10111001101001…
…110010010011101
31000010121122022121
4113031032102131
51244132423430
6102344542541
712435232636
oct2715162235
91003548277
10389342365
1118a856755
12aa481a51
136287c5c9
14399cc88d
15242aaa7a
hex1734e49d

389342365 has 8 divisors (see below), whose sum is σ = 469252440. Its totient is φ = 310112832.

The previous prime is 389342341. The next prime is 389342389. The reversal of 389342365 is 563243983.

It is an interprime number because it is at equal distance from previous prime (389342341) and next prime (389342389).

It can be written as a sum of positive squares in 4 ways, for example, as 156200004 + 233142361 = 12498^2 + 15269^2 .

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 389342365 - 25 = 389342333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168874 + ... + 171163.

It is an arithmetic number, because the mean of its divisors is an integer number (58656555).

Almost surely, 2389342365 is an apocalyptic number.

It is an amenable number.

389342365 is a deficient number, since it is larger than the sum of its proper divisors (79910075).

389342365 is a wasteful number, since it uses less digits than its factorization.

389342365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340271.

The product of its digits is 466560, while the sum is 43.

The square root of 389342365 is about 19731.7603117411. The cubic root of 389342365 is about 730.2034617707.

The spelling of 389342365 in words is "three hundred eighty-nine million, three hundred forty-two thousand, three hundred sixty-five".

Divisors: 1 5 229 1145 340037 1700185 77868473 389342365