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312020029 is a prime number
BaseRepresentation
bin10010100110010…
…000110000111101
3210202010021000101
4102212100300331
51114334120104
650543401101
710506061246
oct2246206075
9722107011
10312020029
111501442a2
12885b3191
134c848c49
142d621ccd
151c5d55a4
hex12990c3d

312020029 has 2 divisors, whose sum is σ = 312020030. Its totient is φ = 312020028.

The previous prime is 312020017. The next prime is 312020041. The reversal of 312020029 is 920020213.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (312020017) and next prime (312020041).

It can be written as a sum of positive squares in only one way, i.e., 288932004 + 23088025 = 16998^2 + 4805^2 .

It is a cyclic number.

It is not a de Polignac number, because 312020029 - 213 = 312011837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312019988 and 312020015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312020099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156010014 + 156010015.

It is an arithmetic number, because the mean of its divisors is an integer number (156010015).

Almost surely, 2312020029 is an apocalyptic number.

It is an amenable number.

312020029 is a deficient number, since it is larger than the sum of its proper divisors (1).

312020029 is an equidigital number, since it uses as much as digits as its factorization.

312020029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 312020029 is about 17664.0886829748. The cubic root of 312020029 is about 678.2568016628.

The spelling of 312020029 in words is "three hundred twelve million, twenty thousand, twenty-nine".