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129622807 = 1719401309
BaseRepresentation
bin1111011100111…
…10001100010111
3100000220112001201
413232132030113
5231140412212
620510133331
73132530026
oct756361427
9300815051
10129622807
1167194596
12374b1247
1320b15bb2
14133028bd
15b5a6b57
hex7b9e317

129622807 has 8 divisors (see below), whose sum is σ = 144471600. Its totient is φ = 115576704.

The previous prime is 129622799. The next prime is 129622847. The reversal of 129622807 is 708226921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129622807 - 23 = 129622799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129622847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200332 + ... + 200977.

It is an arithmetic number, because the mean of its divisors is an integer number (18058950).

Almost surely, 2129622807 is an apocalyptic number.

129622807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

129622807 is a deficient number, since it is larger than the sum of its proper divisors (14848793).

129622807 is a wasteful number, since it uses less digits than its factorization.

129622807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401345.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 129622807 is about 11385.2012279099. The cubic root of 129622807 is about 506.0892828855.

The spelling of 129622807 in words is "one hundred twenty-nine million, six hundred twenty-two thousand, eight hundred seven".

Divisors: 1 17 19 323 401309 6822253 7624871 129622807