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384261 = 3235569
BaseRepresentation
bin1011101110100000101
3201112002220
41131310011
544244021
612122553
73160203
oct1356405
9645086
10384261
11242779
12166459
13105b97
14a0073
1578cc6
hex5dd05

384261 has 8 divisors (see below), whose sum is σ = 534720. Its totient is φ = 244992.

The previous prime is 384259. The next prime is 384277. The reversal of 384261 is 162483.

It is a happy number.

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

It is not a de Polignac number, because 384261 - 21 = 384259 is a prime.

It is a super-2 number, since 2×3842612 = 295313032242, which contains 22 as substring.

384261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384061) 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, 2716 + ... + 2853.

It is an arithmetic number, because the mean of its divisors is an integer number (66840).

2384261 is an apocalyptic number.

It is an amenable number.

384261 is a deficient number, since it is larger than the sum of its proper divisors (150459).

384261 is a wasteful number, since it uses less digits than its factorization.

384261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5595.

The product of its digits is 1152, while the sum is 24.

The square root of 384261 is about 619.8878930904. The cubic root of 384261 is about 72.7012876391.

The spelling of 384261 in words is "three hundred eighty-four thousand, two hundred sixty-one".

Divisors: 1 3 23 69 5569 16707 128087 384261