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121325568 = 2113721331
BaseRepresentation
bin1110011101101…
…00100000000000
322110021222101120
413032310200000
5222024404233
620012232240
73002151600
oct716644000
9273258346
10121325568
1162537771
123476b680
131c19c3a0
1412182c00
15a9b84b3
hex73b4800

121325568 has 288 divisors, whose sum is σ = 418279680. Its totient is φ = 30965760.

The previous prime is 121325557. The next prime is 121325569. The reversal of 121325568 is 865523121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121325569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3913713 + ... + 3913743.

It is an arithmetic number, because the mean of its divisors is an integer number (1452360).

Almost surely, 2121325568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121325568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209139840).

121325568 is an abundant number, since it is smaller than the sum of its proper divisors (296954112).

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

121325568 is a wasteful number, since it uses less digits than its factorization.

121325568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83 (or 56 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 121325568 is about 11014.7886044172. The cubic root of 121325568 is about 495.0519525106.

Adding to 121325568 its reverse (865523121), we get a palindrome (986848689).

The spelling of 121325568 in words is "one hundred twenty-one million, three hundred twenty-five thousand, five hundred sixty-eight".