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29850253 = 157190129
BaseRepresentation
bin111000111011…
…1101010001101
32002011112211221
41301313222031
530120202003
62543443341
7511502656
oct161675215
962145757
1029850253
1115938a34
129bb6551
136251a94
143d7052d
1529497bd
hex1c77a8d

29850253 has 4 divisors (see below), whose sum is σ = 30040540. Its totient is φ = 29659968.

The previous prime is 29850239. The next prime is 29850259. The reversal of 29850253 is 35205892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4418404 + 25431849 = 2102^2 + 5043^2 .

It is a cyclic number.

It is not a de Polignac number, because 29850253 - 25 = 29850221 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 (29850259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94908 + ... + 95221.

It is an arithmetic number, because the mean of its divisors is an integer number (7510135).

Almost surely, 229850253 is an apocalyptic number.

It is an amenable number.

29850253 is a deficient number, since it is larger than the sum of its proper divisors (190287).

29850253 is a wasteful number, since it uses less digits than its factorization.

29850253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190286.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 29850253 is about 5463.5385054011. The cubic root of 29850253 is about 310.2053893842.

It can be divided in two parts, 29850 and 253, that added together give a palindrome (30103).

The spelling of 29850253 in words is "twenty-nine million, eight hundred fifty thousand, two hundred fifty-three".

Divisors: 1 157 190129 29850253