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230157877 is a prime number
BaseRepresentation
bin11011011011111…
…10111000110101
3121001002020020211
431231332320311
5432410023002
634501025421
75463211135
oct1555767065
9531066224
10230157877
11108a11024
12650b5271
13388b60c1
14227d2ac5
1515314dd7
hexdb7ee35

230157877 has 2 divisors, whose sum is σ = 230157878. Its totient is φ = 230157876.

The previous prime is 230157859. The next prime is 230157899. The reversal of 230157877 is 778751032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223532401 + 6625476 = 14951^2 + 2574^2 .

It is a cyclic number.

It is not a de Polignac number, because 230157877 - 223 = 221769269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230157377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115078938 + 115078939.

It is an arithmetic number, because the mean of its divisors is an integer number (115078939).

Almost surely, 2230157877 is an apocalyptic number.

It is an amenable number.

230157877 is a deficient number, since it is larger than the sum of its proper divisors (1).

230157877 is an equidigital number, since it uses as much as digits as its factorization.

230157877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 230157877 is about 15170.9550457445. The cubic root of 230157877 is about 612.8327239582.

The spelling of 230157877 in words is "two hundred thirty million, one hundred fifty-seven thousand, eight hundred seventy-seven".