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235102981 is a prime number
BaseRepresentation
bin11100000001101…
…10001100000101
3121101101110122211
432000312030011
5440141243411
635155023421
75553225301
oct1600661405
9541343584
10235102981
11110789393
126689ab71
1339927bb9
142331cd01
1515990221
hexe036305

235102981 has 2 divisors, whose sum is σ = 235102982. Its totient is φ = 235102980.

The previous prime is 235102963. The next prime is 235102999. The reversal of 235102981 is 189201532.

It is a balanced prime because it is at equal distance from previous prime (235102963) and next prime (235102999).

It can be written as a sum of positive squares in only one way, i.e., 192265956 + 42837025 = 13866^2 + 6545^2 .

It is a cyclic number.

It is not a de Polignac number, because 235102981 - 211 = 235100933 is a prime.

It is a super-2 number, since 2×2351029812 = 110546823350172722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235102961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117551490 + 117551491.

It is an arithmetic number, because the mean of its divisors is an integer number (117551491).

Almost surely, 2235102981 is an apocalyptic number.

It is an amenable number.

235102981 is a deficient number, since it is larger than the sum of its proper divisors (1).

235102981 is an equidigital number, since it uses as much as digits as its factorization.

235102981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 235102981 is about 15333.0682187226. The cubic root of 235102981 is about 617.1907074396.

The spelling of 235102981 in words is "two hundred thirty-five million, one hundred two thousand, nine hundred eighty-one".