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230311379 is a prime number
BaseRepresentation
bin11011011101001…
…00010111010011
3121001101000211002
431232210113103
5432424431004
634504212215
75464420514
oct1556442723
9531330732
10230311379
11109006391
126516a06b
133893ac2c
1422832a0b
151534561e
hexdba45d3

230311379 has 2 divisors, whose sum is σ = 230311380. Its totient is φ = 230311378.

The previous prime is 230311349. The next prime is 230311387. The reversal of 230311379 is 973113032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230311379 - 216 = 230245843 is a prime.

It is a super-3 number, since 3×2303113793 (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230311349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115155689 + 115155690.

It is an arithmetic number, because the mean of its divisors is an integer number (115155690).

Almost surely, 2230311379 is an apocalyptic number.

230311379 is a deficient number, since it is larger than the sum of its proper divisors (1).

230311379 is an equidigital number, since it uses as much as digits as its factorization.

230311379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 29.

The square root of 230311379 is about 15176.0132775377. The cubic root of 230311379 is about 612.9689350153.

The spelling of 230311379 in words is "two hundred thirty million, three hundred eleven thousand, three hundred seventy-nine".