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383310121 = 3745722669
BaseRepresentation
bin10110110110001…
…101100100101001
3222201021011122011
4112312031210221
51241111410441
6102011355521
712333040135
oct2666154451
9881234564
10383310121
11187406627
12a8452ba1
1361549a2c
1438c9c3c5
15239b8581
hex16d8d929

383310121 has 8 divisors (see below), whose sum is σ = 394548680. Its totient is φ = 372117888.

The previous prime is 383310119. The next prime is 383310167. The reversal of 383310121 is 121013383.

It can be written as a sum of positive squares in 4 ways, for example, as 313821225 + 69488896 = 17715^2 + 8336^2 .

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 383310121 - 21 = 383310119 is a prime.

It is a super-2 number, since 2×3833101212 = 293853297722069282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 383310092 and 383310101.

It is not an unprimeable number, because it can be changed into a prime (383310721) 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, 5575 + ... + 28243.

It is an arithmetic number, because the mean of its divisors is an integer number (49318585).

Almost surely, 2383310121 is an apocalyptic number.

It is an amenable number.

383310121 is a deficient number, since it is larger than the sum of its proper divisors (11238559).

383310121 is a wasteful number, since it uses less digits than its factorization.

383310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23163.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 383310121 is about 19578.3074089667. The cubic root of 383310121 is about 726.4127007418.

The spelling of 383310121 in words is "three hundred eighty-three million, three hundred ten thousand, one hundred twenty-one".

Divisors: 1 37 457 16909 22669 838753 10359733 383310121