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121033849 = 2938910729
BaseRepresentation
bin1110011011011…
…01010001111001
322102202011020011
413031231101321
5221441040344
620002101521
72666525236
oct715552171
9272664204
10121033849
1162358582
123464a8a1
131c0c9681
141210878d
15a95bd34
hex736d479

121033849 has 8 divisors (see below), whose sum is σ = 125541000. Its totient is φ = 116548992.

The previous prime is 121033831. The next prime is 121033867. The reversal of 121033849 is 948330121.

It is an interprime number because it is at equal distance from previous prime (121033831) and next prime (121033867).

It can be written as a sum of positive squares in 4 ways, for example, as 17909824 + 103124025 = 4232^2 + 10155^2 .

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 121033849 - 25 = 121033817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121033849.

It is not an unprimeable number, because it can be changed into a prime (121033349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5917 + ... + 16645.

It is an arithmetic number, because the mean of its divisors is an integer number (15692625).

Almost surely, 2121033849 is an apocalyptic number.

It is an amenable number.

121033849 is a deficient number, since it is larger than the sum of its proper divisors (4507151).

121033849 is a wasteful number, since it uses less digits than its factorization.

121033849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 121033849 is about 11001.5384833213. The cubic root of 121033849 is about 494.6548612683.

The spelling of 121033849 in words is "one hundred twenty-one million, thirty-three thousand, eight hundred forty-nine".

Divisors: 1 29 389 10729 11281 311141 4173581 121033849