Search a number
-
+
121331325 = 35223371901
BaseRepresentation
bin1110011101101…
…01111001111101
322110022021021210
413032311321331
5222030100300
620012315033
73002204433
oct716657175
9273267253
10121331325
1162541025
1234772a79
131c1a1bab
1412184d53
15a9ba050
hex73b5e7d

121331325 has 48 divisors (see below), whose sum is σ = 215093376. Its totient is φ = 60192000.

The previous prime is 121331269. The next prime is 121331333. The reversal of 121331325 is 523133121.

It is not a de Polignac number, because 121331325 - 28 = 121331069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62875 + ... + 64775.

It is an arithmetic number, because the mean of its divisors is an integer number (4481112).

Almost surely, 2121331325 is an apocalyptic number.

121331325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121331325 is a deficient number, since it is larger than the sum of its proper divisors (93762051).

121331325 is a wasteful number, since it uses less digits than its factorization.

121331325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1969 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 121331325 is about 11015.0499317979. The cubic root of 121331325 is about 495.0597825970.

Adding to 121331325 its reverse (523133121), we get a palindrome (644464446).

The spelling of 121331325 in words is "one hundred twenty-one million, three hundred thirty-one thousand, three hundred twenty-five".

Divisors: 1 3 5 15 23 25 37 69 75 111 115 185 345 555 575 851 925 1725 1901 2553 2775 4255 5703 9505 12765 21275 28515 43723 47525 63825 70337 131169 142575 211011 218615 351685 655845 1055055 1093075 1617751 1758425 3279225 4853253 5275275 8088755 24266265 40443775 121331325