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121306676 = 22193157133
BaseRepresentation
bin1110011101011…
…11111000110100
322110021000110212
413032233320310
5222023303201
620012004552
73002042531
oct716577064
9273230425
10121306676
1162524557
1234760758
131c1938ca
1412179d88
15a9b2abb
hex73afe34

121306676 has 12 divisors (see below), whose sum is σ = 213387972. Its totient is φ = 60338688.

The previous prime is 121306673. The next prime is 121306693. The reversal of 121306676 is 676603121.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 103022500 = 4276^2 + 10150^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121306673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77795 + ... + 79338.

It is an arithmetic number, because the mean of its divisors is an integer number (17782331).

Almost surely, 2121306676 is an apocalyptic number.

It is an amenable number.

121306676 is a deficient number, since it is larger than the sum of its proper divisors (92081296).

121306676 is a wasteful number, since it uses less digits than its factorization.

121306676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157330 (or 157328 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 121306676 is about 11013.9309966969. The cubic root of 121306676 is about 495.0262557920.

Adding to 121306676 its reverse (676603121), we get a palindrome (797909797).

The spelling of 121306676 in words is "one hundred twenty-one million, three hundred six thousand, six hundred seventy-six".

Divisors: 1 2 4 193 386 772 157133 314266 628532 30326669 60653338 121306676