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384538084 = 22721961929
BaseRepresentation
bin10110111010111…
…001010111100100
3222210120120002021
4112322321113210
51241420204314
6102053552524
712346343200
oct2672712744
9883516067
10384538084
11188075177
12a8945744
1361889938
14390dbb00
1523b5c324
hex16eb95e4

384538084 has 18 divisors (see below), whose sum is σ = 782810070. Its totient is φ = 164801952.

The previous prime is 384538061. The next prime is 384538153. The reversal of 384538084 is 480835483.

It can be written as a sum of positive squares in only one way, i.e., 343064484 + 41473600 = 18522^2 + 6440^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 384538084.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 980769 + ... + 981160.

Almost surely, 2384538084 is an apocalyptic number.

It is an amenable number.

384538084 is an abundant number, since it is smaller than the sum of its proper divisors (398271986).

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

384538084 is a wasteful number, since it uses less digits than its factorization.

384538084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961947 (or 1961938 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 384538084 is about 19609.6426280542. The cubic root of 384538084 is about 727.1875799009.

The spelling of 384538084 in words is "three hundred eighty-four million, five hundred thirty-eight thousand, eighty-four".

Divisors: 1 2 4 7 14 28 49 98 196 1961929 3923858 7847716 13733503 27467006 54934012 96134521 192269042 384538084