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213692166968 = 23724391241761
BaseRepresentation
bin1100011100000100001…
…0111011001100111000
3202102120120111211112112
43013001002323030320
512000120143320333
6242100244431452
721303330310100
oct3070102731470
9672516454475
10213692166968
1182698725975
12354b90a8588
13171c6c19b17
14a4b2746200
15585a54c948
hex31c10bb338

213692166968 has 48 divisors (see below), whose sum is σ = 467150864400. Its totient is φ = 91373667840.

The previous prime is 213692166953. The next prime is 213692166991. The reversal of 213692166968 is 869661296312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 448793 + ... + 792968.

It is an arithmetic number, because the mean of its divisors is an integer number (9732309675).

Almost surely, 2213692166968 is an apocalyptic number.

213692166968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

213692166968 is an abundant number, since it is smaller than the sum of its proper divisors (253458697432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213692166968 is a wasteful number, since it uses less digits than its factorization.

213692166968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242220 (or 1242209 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 59.

The spelling of 213692166968 in words is "two hundred thirteen billion, six hundred ninety-two million, one hundred sixty-six thousand, nine hundred sixty-eight".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 439 878 1756 3073 3512 6146 12292 21511 24584 43022 86044 172088 1241761 2483522 4967044 8692327 9934088 17384654 34769308 60846289 69538616 121692578 243385156 486770312 545133079 1090266158 2180532316 3815931553 4361064632 7631863106 15263726212 26711520871 30527452424 53423041742 106846083484 213692166968