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6420246086468 = 223936740771751
BaseRepresentation
bin101110101101101010001…
…1111001100001101000100
3211201202202222200200022102
41131123110133030031010
51320142130444231333
621353230443051232
71231563453211304
oct135332437141504
924652688620272
106420246086468
1120558a15a4215
12878353510b18
13377571348056
14182a54c15604
15b201300bae8
hex5d6d47cc344

6420246086468 has 12 divisors (see below), whose sum is σ = 11235716329152. Its totient is φ = 3210041421000.

The previous prime is 6420246086447. The next prime is 6420246086609. The reversal of 6420246086468 is 8646806420246.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20228408 + ... + 20543343.

It is an arithmetic number, because the mean of its divisors is an integer number (936309694096).

Almost surely, 26420246086468 is an apocalyptic number.

It is an amenable number.

6420246086468 is a deficient number, since it is larger than the sum of its proper divisors (4815470242684).

6420246086468 is a wasteful number, since it uses less digits than its factorization.

6420246086468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40811122 (or 40811120 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 56.

The spelling of 6420246086468 in words is "six trillion, four hundred twenty billion, two hundred forty-six million, eighty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 39367 78734 157468 40771751 81543502 163087004 1605061521617 3210123043234 6420246086468