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230743853613 = 32721340248361
BaseRepresentation
bin1101011011100101100…
…1111100101000101101
3211001120221021021012100
43112321121330220231
512240030411303423
6254000253325313
722446022252200
oct3267131745055
9731527237170
10230743853613
1189948987489
1238877796839
13189b3839230
14b24d23b937
156007534343
hex35b967ca2d

230743853613 has 36 divisors (see below), whose sum is σ = 417536507388. Its totient is φ = 121711040640.

The previous prime is 230743853597. The next prime is 230743853657. The reversal of 230743853613 is 316358347032.

230743853613 is a `hidden beast` number, since 2 + 3 + 0 + 74 + 38 + 536 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 158230519524 + 72513334089 = 397782^2 + 269283^2 .

It is not a de Polignac number, because 230743853613 - 24 = 230743853597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230743853413) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20118448 + ... + 20129913.

Almost surely, 2230743853613 is an apocalyptic number.

It is an amenable number.

230743853613 is a deficient number, since it is larger than the sum of its proper divisors (186792653775).

230743853613 is a wasteful number, since it uses less digits than its factorization.

230743853613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40248394 (or 40248384 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 230743853613 in words is "two hundred thirty billion, seven hundred forty-three million, eight hundred fifty-three thousand, six hundred thirteen".

Divisors: 1 3 7 9 13 21 39 49 63 91 117 147 273 441 637 819 1911 5733 40248361 120745083 281738527 362235249 523228693 845215581 1569686079 1972169689 2535646743 3662600851 4709058237 5916509067 10987802553 17749527201 25638205957 32963407659 76914617871 230743853613