Search a number
-
+
348439800121 = 7223309174623
BaseRepresentation
bin1010001001000001010…
…00010110100100111001
31020022101100221211111021
411010200220112210321
521202101042100441
6424023202102441
734113443301400
oct5044050264471
91208340854437
10348439800121
11124855202066
125764394aa21
1326b1c58c42a
1412c1657c637
1590e50b73d1
hex5120a16939

348439800121 has 12 divisors (see below), whose sum is σ = 422950885632. Its totient is φ = 285677350728.

The previous prime is 348439800119. The next prime is 348439800139. The reversal of 348439800121 is 121008934843.

It is not a de Polignac number, because 348439800121 - 21 = 348439800119 is a prime.

It is a super-2 number, since 2×3484398001212 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348439800221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154586185 + ... + 154588438.

It is an arithmetic number, because the mean of its divisors is an integer number (35245907136).

Almost surely, 2348439800121 is an apocalyptic number.

It is an amenable number.

348439800121 is a deficient number, since it is larger than the sum of its proper divisors (74511085511).

348439800121 is a wasteful number, since it uses less digits than its factorization.

348439800121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309174660 (or 309174653 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 348439800121 in words is "three hundred forty-eight billion, four hundred thirty-nine million, eight hundred thousand, one hundred twenty-one".

Divisors: 1 7 23 49 161 1127 309174623 2164222361 7111016329 15149556527 49777114303 348439800121