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379665 = 325111359
BaseRepresentation
bin1011100101100010001
3201021210200
41130230101
544122130
612045413
73140616
oct1345421
9637720
10379665
1123a280
12163869
13103a70
149c50d
1577760
hex5cb11

379665 has 48 divisors (see below), whose sum is σ = 786240. Its totient is φ = 167040.

The previous prime is 379663. The next prime is 379667. The reversal of 379665 is 566973.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (379663) and next prime (379667).

It is not a de Polignac number, because 379665 - 21 = 379663 is a prime.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (379663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6406 + ... + 6464.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2379665 is an apocalyptic number.

379665 is the 390-th heptagonal number.

It is an amenable number.

379665 is an abundant number, since it is smaller than the sum of its proper divisors (406575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

379665 is a wasteful number, since it uses less digits than its factorization.

379665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 91 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 379665 is about 616.1696195042. The cubic root of 379665 is about 72.4102734625.

The spelling of 379665 in words is "three hundred seventy-nine thousand, six hundred sixty-five".

Divisors: 1 3 5 9 11 13 15 33 39 45 55 59 65 99 117 143 165 177 195 295 429 495 531 585 649 715 767 885 1287 1947 2145 2301 2655 3245 3835 5841 6435 6903 8437 9735 11505 25311 29205 34515 42185 75933 126555 379665