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29191755349 is a prime number
BaseRepresentation
bin11011001011111101…
…101101011001010101
32210100102102211011001
4123023331231121111
5434241042132344
621224400343301
72052253553311
oct331375553125
983312384131
1029191755349
111141aa91949
1257a8314b31
1329a2ab6623
1415acd74b41
15b5cbc3ed4
hex6cbf6d655

29191755349 has 2 divisors, whose sum is σ = 29191755350. Its totient is φ = 29191755348.

The previous prime is 29191755331. The next prime is 29191755367. The reversal of 29191755349 is 94355719192.

It is a balanced prime because it is at equal distance from previous prime (29191755331) and next prime (29191755367).

It can be written as a sum of positive squares in only one way, i.e., 26347133124 + 2844622225 = 162318^2 + 53335^2 .

It is a cyclic number.

It is not a de Polignac number, because 29191755349 - 217 = 29191624277 is a prime.

It is a super-2 number, since 2×291917553492 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 29191755349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29191755379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14595877674 + 14595877675.

It is an arithmetic number, because the mean of its divisors is an integer number (14595877675).

Almost surely, 229191755349 is an apocalyptic number.

It is an amenable number.

29191755349 is a deficient number, since it is larger than the sum of its proper divisors (1).

29191755349 is an equidigital number, since it uses as much as digits as its factorization.

29191755349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3061800, while the sum is 55.

The spelling of 29191755349 in words is "twenty-nine billion, one hundred ninety-one million, seven hundred fifty-five thousand, three hundred forty-nine".