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121346530 = 2512134653
BaseRepresentation
bin1110011101110…
…01100111100010
322110100001010221
413032321213202
5222031042110
620012513254
73002266654
oct716714742
9273301127
10121346530
1162551498
123477b82a
131c1a8aa6
141218a6d4
15a9be7da
hex73b99e2

121346530 has 8 divisors (see below), whose sum is σ = 218423772. Its totient is φ = 48538608.

The previous prime is 121346509. The next prime is 121346531. The reversal of 121346530 is 35643121.

It can be written as a sum of positive squares in 2 ways, for example, as 110397049 + 10949481 = 10507^2 + 3309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121346495 and 121346504.

It is not an unprimeable number, because it can be changed into a prime (121346531) 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, 6067317 + ... + 6067336.

Almost surely, 2121346530 is an apocalyptic number.

121346530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121346530 is a deficient number, since it is larger than the sum of its proper divisors (97077242).

121346530 is a wasteful number, since it uses less digits than its factorization.

121346530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12134660.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 121346530 is about 11015.7401022355. The cubic root of 121346530 is about 495.0804617018.

Adding to 121346530 its reverse (35643121), we get a palindrome (156989651).

The spelling of 121346530 in words is "one hundred twenty-one million, three hundred forty-six thousand, five hundred thirty".

Divisors: 1 2 5 10 12134653 24269306 60673265 121346530