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129468605 = 573699103
BaseRepresentation
bin1111011011110…
…00100010111101
3100000121200112112
413231320202331
5231120443410
620502543405
73131315330
oct755704275
9300550475
10129468605
1167099752
1237437b65
1320a90956
14132a2617
15b576105
hex7b788bd

129468605 has 8 divisors (see below), whose sum is σ = 177556992. Its totient is φ = 88778448.

The previous prime is 129468593. The next prime is 129468643. The reversal of 129468605 is 506864921.

It is a happy number.

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 129468605 - 28 = 129468349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1849517 + ... + 1849586.

It is an arithmetic number, because the mean of its divisors is an integer number (22194624).

Almost surely, 2129468605 is an apocalyptic number.

It is an amenable number.

129468605 is a deficient number, since it is larger than the sum of its proper divisors (48088387).

129468605 is an equidigital number, since it uses as much as digits as its factorization.

129468605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699115.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 129468605 is about 11378.4271760204. The cubic root of 129468605 is about 505.8885184577. Note that the first 3 decimals are identical.

The spelling of 129468605 in words is "one hundred twenty-nine million, four hundred sixty-eight thousand, six hundred five".

Divisors: 1 5 7 35 3699103 18495515 25893721 129468605