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229782057 = 3711078789
BaseRepresentation
bin11011011001000…
…11001000101001
3121000101010201120
431230203020221
5432311011212
634445005453
75460054351
oct1554431051
9530333646
10229782057
1110878472a
1264b53889
13387b401b
1422735b61
151528d88c
hexdb23229

229782057 has 8 divisors (see below), whose sum is σ = 310691520. Its totient is φ = 151030320.

The previous prime is 229782053. The next prime is 229782071. The reversal of 229782057 is 750287922.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 229782057 - 22 = 229782053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229782053) 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 in 7 ways as a sum of consecutive naturals, for example, 539182 + ... + 539607.

It is an arithmetic number, because the mean of its divisors is an integer number (38836440).

Almost surely, 2229782057 is an apocalyptic number.

It is an amenable number.

229782057 is a deficient number, since it is larger than the sum of its proper divisors (80909463).

229782057 is a wasteful number, since it uses less digits than its factorization.

229782057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078863.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 229782057 is about 15158.5638171959. The cubic root of 229782057 is about 612.4989816448.

The spelling of 229782057 in words is "two hundred twenty-nine million, seven hundred eighty-two thousand, fifty-seven".

Divisors: 1 3 71 213 1078789 3236367 76594019 229782057