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129614468 = 2253611389
BaseRepresentation
bin1111011100111…
…00001010000100
3100000220002121212
413232130022010
5231140130333
620510030552
73132463514
oct756341204
9300802555
10129614468
11671892a5
12374a8458
1320b12169
14132dd844
15b5a4448
hex7b9c284

129614468 has 12 divisors (see below), whose sum is σ = 231105420. Its totient is φ = 63584352.

The previous prime is 129614399. The next prime is 129614473. The reversal of 129614468 is 864416921.

It can be written as a sum of positive squares in 2 ways, for example, as 52736644 + 76877824 = 7262^2 + 8768^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305483 + ... + 305906.

It is an arithmetic number, because the mean of its divisors is an integer number (19258785).

Almost surely, 2129614468 is an apocalyptic number.

It is an amenable number.

129614468 is a deficient number, since it is larger than the sum of its proper divisors (101490952).

129614468 is a wasteful number, since it uses less digits than its factorization.

129614468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611446 (or 611444 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 129614468 is about 11384.8350010002. The cubic root of 129614468 is about 506.0784299368.

The spelling of 129614468 in words is "one hundred twenty-nine million, six hundred fourteen thousand, four hundred sixty-eight".

Divisors: 1 2 4 53 106 212 611389 1222778 2445556 32403617 64807234 129614468