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29870929459 = 720112121967
BaseRepresentation
bin11011110100011100…
…100011011000110011
32212002202102102212201
4123310130203120303
5442133424220314
621420021404031
72105141465620
oct336434433063
985082372781
1029870929459
11117393a7468
125957869617
132a807136b7
14163524b347
15b9c630b74
hex6f4723633

29870929459 has 8 divisors (see below), whose sum is σ = 34155196928. Its totient is φ = 25590909960.

The previous prime is 29870929457. The next prime is 29870929481. The reversal of 29870929459 is 95492907892.

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

It is not a de Polignac number, because 29870929459 - 21 = 29870929457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29870929459.

It is not an unprimeable number, because it can be changed into a prime (29870929453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1046907 + ... + 1075060.

It is an arithmetic number, because the mean of its divisors is an integer number (4269399616).

Almost surely, 229870929459 is an apocalyptic number.

29870929459 is a deficient number, since it is larger than the sum of its proper divisors (4284267469).

29870929459 is a wasteful number, since it uses less digits than its factorization.

29870929459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123985.

The product of its (nonzero) digits is 29393280, while the sum is 64.

The spelling of 29870929459 in words is "twenty-nine billion, eight hundred seventy million, nine hundred twenty-nine thousand, four hundred fifty-nine".

Divisors: 1 7 2011 14077 2121967 14853769 4267275637 29870929459