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230777812 = 2257694453
BaseRepresentation
bin11011100000101…
…10001111010100
3121002020201122101
431300112033110
5433034342222
634522211444
75501402416
oct1560261724
9532221571
10230777812
111092a4871
1265353b84
1338a72325
14229149b6
15153d8927
hexdc163d4

230777812 has 6 divisors (see below), whose sum is σ = 403861178. Its totient is φ = 115388904.

The previous prime is 230777809. The next prime is 230777821. The reversal of 230777812 is 218777032.

230777812 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 230614596 + 163216 = 15186^2 + 404^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28847223 + ... + 28847230.

Almost surely, 2230777812 is an apocalyptic number.

It is an amenable number.

230777812 is a deficient number, since it is larger than the sum of its proper divisors (173083366).

230777812 is a wasteful number, since it uses less digits than its factorization.

230777812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57694457 (or 57694455 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 230777812 is about 15191.3729465115. The cubic root of 230777812 is about 613.3824565518.

The spelling of 230777812 in words is "two hundred thirty million, seven hundred seventy-seven thousand, eight hundred twelve".

Divisors: 1 2 4 57694453 115388906 230777812