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68182228186 = 282214146833
BaseRepresentation
bin111111011111111110…
…100011110011011010
320111222201220001201121
4333133332203303122
52104114122300221
651153353435454
74632422243242
oct773776436332
9214881801647
1068182228186
1126a090aa216
121126a10bb8a
136577974427
14342b434b22
151b90c46a41
hexfdffa3cda

68182228186 has 8 divisors (see below), whose sum is σ = 102285807444. Its totient is φ = 34086959040.

The previous prime is 68182228181. The next prime is 68182228187.

68182228186 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 65859470161 + 2322758025 = 256631^2 + 48195^2 .

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

It is not an unprimeable number, because it can be changed into a prime (68182228181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056975 + ... + 2089858.

Almost surely, 268182228186 is an apocalyptic number.

68182228186 is a deficient number, since it is larger than the sum of its proper divisors (34103579258).

68182228186 is a wasteful number, since it uses less digits than its factorization.

68182228186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155056.

The product of its digits is 1179648, while the sum is 52.

The spelling of 68182228186 in words is "sixty-eight billion, one hundred eighty-two million, two hundred twenty-eight thousand, one hundred eighty-six".

Divisors: 1 2 8221 16442 4146833 8293666 34091114093 68182228186