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121321302 = 2320220217
BaseRepresentation
bin1110011101100…
…11011101010110
322110021202112120
413032303131112
5222024240202
620012200410
73002133264
oct716633526
9273252476
10121321302
1162534543
1234769106
131c19a46b
1412181434
15a9b70bc
hex73b3756

121321302 has 8 divisors (see below), whose sum is σ = 242642616. Its totient is φ = 40440432.

The previous prime is 121321283. The next prime is 121321307. The reversal of 121321302 is 203123121.

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

121321302 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321307) 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, 10110103 + ... + 10110114.

It is an arithmetic number, because the mean of its divisors is an integer number (30330327).

Almost surely, 2121321302 is an apocalyptic number.

121321302 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121321302 is a wasteful number, since it uses less digits than its factorization.

121321302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220222.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121321302 is about 11014.5949539690. The cubic root of 121321302 is about 495.0461501712.

Adding to 121321302 its reverse (203123121), we get a palindrome (324444423).

The spelling of 121321302 in words is "one hundred twenty-one million, three hundred twenty-one thousand, three hundred two".

Divisors: 1 2 3 6 20220217 40440434 60660651 121321302