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120802069 is a prime number
BaseRepresentation
bin1110011001101…
…00101100010101
322102022101021201
413030310230111
5221411131234
615553112501
72664541423
oct714645425
9272271251
10120802069
116220a423
1234558731
131c04801b
1412088113
15a913314
hex7334b15

120802069 has 2 divisors, whose sum is σ = 120802070. Its totient is φ = 120802068.

The previous prime is 120802067. The next prime is 120802109. The reversal of 120802069 is 960208021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69105969 + 51696100 = 8313^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 120802069 - 21 = 120802067 is a prime.

It is a super-2 number, since 2×1208020692 = 29186279749361522, which contains 22 as substring.

Together with 120802067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120802063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60401034 + 60401035.

It is an arithmetic number, because the mean of its divisors is an integer number (60401035).

Almost surely, 2120802069 is an apocalyptic number.

It is an amenable number.

120802069 is a deficient number, since it is larger than the sum of its proper divisors (1).

120802069 is an equidigital number, since it uses as much as digits as its factorization.

120802069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 120802069 is about 10990.9994540988. Note that the first 3 decimals coincide. The cubic root of 120802069 is about 494.3389045660.

The spelling of 120802069 in words is "one hundred twenty million, eight hundred two thousand, sixty-nine".