Search a number
-
+
121006733 = 313903443
BaseRepresentation
bin1110011011001…
…10101010001101
322102200210000212
413031212222031
5221434203413
620001332205
72666353211
oct715465215
9272623025
10121006733
116233a171
1234637065
131c0ba223
14120dc941
15a953ca8
hex7366a8d

121006733 has 4 divisors (see below), whose sum is σ = 124910208. Its totient is φ = 117103260.

The previous prime is 121006729. The next prime is 121006747. The reversal of 121006733 is 337600121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 337600121 = 2771218773.

It is a cyclic number.

It is not a de Polignac number, because 121006733 - 22 = 121006729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121006699 and 121006708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121006723) 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, 1951691 + ... + 1951752.

It is an arithmetic number, because the mean of its divisors is an integer number (31227552).

Almost surely, 2121006733 is an apocalyptic number.

It is an amenable number.

121006733 is a deficient number, since it is larger than the sum of its proper divisors (3903475).

121006733 is an equidigital number, since it uses as much as digits as its factorization.

121006733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903474.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 121006733 is about 11000.3060411972. The cubic root of 121006733 is about 494.6179182613.

Adding to 121006733 its reverse (337600121), we get a palindrome (458606854).

The spelling of 121006733 in words is "one hundred twenty-one million, six thousand, seven hundred thirty-three".

Divisors: 1 31 3903443 121006733