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120023381 is a prime number
BaseRepresentation
bin1110010011101…
…10100101010101
322100211211010102
413021312211111
5221211222011
615524303445
72655116252
oct711664525
9270754112
10120023381
1161828385
1234241b85
131bb3476a
1411d24429
15a80c73b
hex7276955

120023381 has 2 divisors, whose sum is σ = 120023382. Its totient is φ = 120023380.

The previous prime is 120023377. The next prime is 120023411. The reversal of 120023381 is 183320021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62884900 + 57138481 = 7930^2 + 7559^2 .

It is a cyclic number.

It is not a de Polignac number, because 120023381 - 22 = 120023377 is a prime.

It is a super-2 number, since 2×1200233812 = 28811223973342322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120023081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60011690 + 60011691.

It is an arithmetic number, because the mean of its divisors is an integer number (60011691).

Almost surely, 2120023381 is an apocalyptic number.

It is an amenable number.

120023381 is a deficient number, since it is larger than the sum of its proper divisors (1).

120023381 is an equidigital number, since it uses as much as digits as its factorization.

120023381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120023381 is about 10955.5182898848. The cubic root of 120023381 is about 493.2744475105.

The spelling of 120023381 in words is "one hundred twenty million, twenty-three thousand, three hundred eighty-one".