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385509054 = 2379178787
BaseRepresentation
bin10110111110100…
…110011010111110
3222212101220000010
4112332212122332
51242142242204
6102130444050
712360526050
oct2676463276
9885356003
10385509054
11188678727
12a9133626
1361b39888
14392b18d0
1523c9ed89
hex16fa66be

385509054 has 16 divisors (see below), whose sum is σ = 881163648. Its totient is φ = 110145432.

The previous prime is 385509043. The next prime is 385509077. The reversal of 385509054 is 450905583.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4589352 + ... + 4589435.

It is an arithmetic number, because the mean of its divisors is an integer number (55072728).

Almost surely, 2385509054 is an apocalyptic number.

385509054 is an abundant number, since it is smaller than the sum of its proper divisors (495654594).

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

385509054 is a wasteful number, since it uses less digits than its factorization.

385509054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9178799.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 385509054 is about 19634.3844823310. The cubic root of 385509054 is about 727.7991221619.

The spelling of 385509054 in words is "three hundred eighty-five million, five hundred nine thousand, fifty-four".

Divisors: 1 2 3 6 7 14 21 42 9178787 18357574 27536361 55072722 64251509 128503018 192754527 385509054