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134789408 = 2513457709
BaseRepresentation
bin10000000100010…
…11100100100000
3100101122000022022
420002023210200
5234001230113
621213001012
73224456015
oct1002134440
9311560268
10134789408
116a0a3306
1239183168
1321c04760
1413c8970c
15bc77908
hex808b920

134789408 has 48 divisors (see below), whose sum is σ = 286808760. Its totient is φ = 61986816.

The previous prime is 134789399. The next prime is 134789429. The reversal of 134789408 is 804987431.

It can be written as a sum of positive squares in 4 ways, for example, as 93161104 + 41628304 = 9652^2 + 6452^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189758 + ... + 190466.

Almost surely, 2134789408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134789408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143404380).

134789408 is an abundant number, since it is smaller than the sum of its proper divisors (152019352).

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

134789408 is a wasteful number, since it uses less digits than its factorization.

134789408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 134789408 is about 11609.8840648820. The cubic root of 134789408 is about 512.7258990655.

The spelling of 134789408 in words is "one hundred thirty-four million, seven hundred eighty-nine thousand, four hundred eight".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 457 709 914 1418 1828 2836 3656 5672 5941 7312 9217 11344 11882 14624 18434 22688 23764 36868 47528 73736 95056 147472 190112 294944 324013 648026 1296052 2592104 4212169 5184208 8424338 10368416 16848676 33697352 67394704 134789408