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385161 = 3718341
BaseRepresentation
bin1011110000010001001
3201120100020
41132002021
544311121
612131053
73162630
oct1360211
9646306
10385161
11243417
12166a89
1310640a
14a0517
15791c6
hex5e089

385161 has 8 divisors (see below), whose sum is σ = 586944. Its totient is φ = 220080.

The previous prime is 385159. The next prime is 385171. The reversal of 385161 is 161583.

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

It is not a de Polignac number, because 385161 - 21 = 385159 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 385161.

It is not an unprimeable number, because it can be changed into a prime (385141) 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, 9150 + ... + 9191.

It is an arithmetic number, because the mean of its divisors is an integer number (73368).

2385161 is an apocalyptic number.

It is an amenable number.

385161 is a deficient number, since it is larger than the sum of its proper divisors (201783).

385161 is a wasteful number, since it uses less digits than its factorization.

385161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18351.

The product of its digits is 720, while the sum is 24.

The square root of 385161 is about 620.6134062361. The cubic root of 385161 is about 72.7580026860.

Adding to 385161 its product of digits (720), we get a triangular number (385881 = T878).

The spelling of 385161 in words is "three hundred eighty-five thousand, one hundred sixty-one".

Divisors: 1 3 7 21 18341 55023 128387 385161