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230220877 is a prime number
BaseRepresentation
bin11011011100011…
…10010001001101
3121001012102200011
431232032101031
5432414032002
634502233221
75463562615
oct1556162115
9531172604
10230220877
11108a54397
1265125811
1338908993
142280ba45
15153288d7
hexdb8e44d

230220877 has 2 divisors, whose sum is σ = 230220878. Its totient is φ = 230220876.

The previous prime is 230220847. The next prime is 230221031. The reversal of 230220877 is 778022032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192349161 + 37871716 = 13869^2 + 6154^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-230220877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230220827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115110438 + 115110439.

It is an arithmetic number, because the mean of its divisors is an integer number (115110439).

Almost surely, 2230220877 is an apocalyptic number.

It is an amenable number.

230220877 is a deficient number, since it is larger than the sum of its proper divisors (1).

230220877 is an equidigital number, since it uses as much as digits as its factorization.

230220877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 230220877 is about 15173.0312396699. The cubic root of 230220877 is about 612.8886347674. Note that the first 3 decimals are identical.

The spelling of 230220877 in words is "two hundred thirty million, two hundred twenty thousand, eight hundred seventy-seven".