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386146080 = 253252389131
BaseRepresentation
bin10111000001000…
…001111100100000
3222220121020211200
4113001001330200
51242323133310
6102152241200
712366121215
oct2701017440
9886536750
10386146080
11188a732a1
12a93a0200
1362000808
14393d9b0c
1523d789c0
hex17041f20

386146080 has 288 divisors, whose sum is σ = 1401079680. Its totient is φ = 96645120.

The previous prime is 386146069. The next prime is 386146081. The reversal of 386146080 is 80641683.

It is a happy number.

386146080 is a `hidden beast` number, since 38 + 6 + 14 + 608 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-3 number, since 3×3861460803 (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (386146081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2947615 + ... + 2947745.

It is an arithmetic number, because the mean of its divisors is an integer number (4864860).

Almost surely, 2386146080 is an apocalyptic number.

386146080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 386146080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700539840).

386146080 is an abundant number, since it is smaller than the sum of its proper divisors (1014933600).

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

386146080 is a wasteful number, since it uses less digits than its factorization.

386146080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 386146080 is about 19650.5999908400. The cubic root of 386146080 is about 728.1997801342.

The spelling of 386146080 in words is "three hundred eighty-six million, one hundred forty-six thousand, eighty".