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438119055 = 325117191231
BaseRepresentation
bin11010000111010…
…010101010001111
31010112101202100200
4122013102222033
51344124302210
6111250224543
713566644013
oct3207225217
91115352320
10438119055
11205341370
12102885153
136c9c9c5a
1442288543
15286e30c0
hex1a1d2a8f

438119055 has 48 divisors (see below), whose sum is σ = 830269440. Its totient is φ = 211953600.

The previous prime is 438119029. The next prime is 438119057. The reversal of 438119055 is 550911834.

It is not a de Polignac number, because 438119055 - 216 = 438053519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438119057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355290 + ... + 356520.

It is an arithmetic number, because the mean of its divisors is an integer number (17297280).

Almost surely, 2438119055 is an apocalyptic number.

438119055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

438119055 is a deficient number, since it is larger than the sum of its proper divisors (392150385).

438119055 is a wasteful number, since it uses less digits than its factorization.

438119055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 438119055 is about 20931.2936771715. The cubic root of 438119055 is about 759.5051343302.

It can be divided in two parts, 4381 and 19055, that added together give a triangular number (23436 = T216).

The spelling of 438119055 in words is "four hundred thirty-eight million, one hundred nineteen thousand, fifty-five".

Divisors: 1 3 5 9 11 15 33 45 55 99 165 495 719 1231 2157 3595 3693 6155 6471 7909 10785 11079 13541 18465 23727 32355 39545 40623 55395 67705 71181 118635 121869 203115 355905 609345 885089 2655267 4425445 7965801 9735979 13276335 29207937 39829005 48679895 87623811 146039685 438119055