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29298931993 = 57115130263
BaseRepresentation
bin11011010010010110…
…100011100100011001
32210121220002221212101
4123102112203210121
5440001011310433
621243145443401
72055024545542
oct332226434431
983556087771
1029298931993
1111475535291
1258181a0561
1329bc070866
1415bd2b34c9
15b672e507d
hex6d25a3919

29298931993 has 4 divisors (see below), whose sum is σ = 29304067968. Its totient is φ = 29293796020.

The previous prime is 29298931967. The next prime is 29298932027. The reversal of 29298931993 is 39913989292.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29298931993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29298931903) 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 3 ways as a sum of consecutive naturals, for example, 2559421 + ... + 2570842.

It is an arithmetic number, because the mean of its divisors is an integer number (7326016992).

Almost surely, 229298931993 is an apocalyptic number.

It is an amenable number.

29298931993 is a deficient number, since it is larger than the sum of its proper divisors (5135975).

29298931993 is an equidigital number, since it uses as much as digits as its factorization.

29298931993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135974.

The product of its digits is 17006112, while the sum is 64.

The spelling of 29298931993 in words is "twenty-nine billion, two hundred ninety-eight million, nine hundred thirty-one thousand, nine hundred ninety-three".

Divisors: 1 5711 5130263 29298931993