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69894384 = 2437229717
BaseRepresentation
bin1000010101010…
…00000011110000
311212112000001220
410022220003300
5120343110014
610534025040
71506043500
oct412500360
9155460056
1069894384
11364a975a
121b4a8180
1311632731
1493d5a00
1562096a9
hex42a80f0

69894384 has 60 divisors (see below), whose sum is σ = 210046824. Its totient is φ = 19969152.

The previous prime is 69894337. The next prime is 69894389. The reversal of 69894384 is 48349896.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69894389) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12507 + ... + 17210.

Almost surely, 269894384 is an apocalyptic number.

It is an amenable number.

69894384 is an abundant number, since it is smaller than the sum of its proper divisors (140152440).

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

69894384 is a wasteful number, since it uses less digits than its factorization.

69894384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29742 (or 29729 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 69894384 is about 8360.2861195057. The cubic root of 69894384 is about 411.9211524735.

It can be divided in two parts, 69 and 894384, that added together give a triangular number (894453 = T1337).

The spelling of 69894384 in words is "sixty-nine million, eight hundred ninety-four thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 49 56 84 98 112 147 168 196 294 336 392 588 784 1176 2352 29717 59434 89151 118868 178302 208019 237736 356604 416038 475472 624057 713208 832076 1248114 1426416 1456133 1664152 2496228 2912266 3328304 4368399 4992456 5824532 8736798 9984912 11649064 17473596 23298128 34947192 69894384