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6620214205 = 511177080443
BaseRepresentation
bin1100010101001100…
…00111001110111101
3122002101002201121201
412022212013032331
5102024233323310
63012530055501
7323024615023
oct61246071675
918071081551
106620214205
112897a35a10
12134911a591
13816721417
1446b338713
1528b2e9e3a
hex18a9873bd

6620214205 has 16 divisors (see below), whose sum is σ = 9176255424. Its totient is φ = 4531482880.

The previous prime is 6620214191. The next prime is 6620214229. The reversal of 6620214205 is 5024120266.

6620214205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6620214205 - 25 = 6620214173 is a prime.

It is a super-2 number, since 2×66202142052 = 87654472240167564050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3539287 + ... + 3541156.

It is an arithmetic number, because the mean of its divisors is an integer number (573515964).

Almost surely, 26620214205 is an apocalyptic number.

It is an amenable number.

6620214205 is a deficient number, since it is larger than the sum of its proper divisors (2556041219).

6620214205 is a wasteful number, since it uses less digits than its factorization.

6620214205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080476.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 6620214205 is about 81364.6987642675. The cubic root of 6620214205 is about 1877.6905212856.

The spelling of 6620214205 in words is "six billion, six hundred twenty million, two hundred fourteen thousand, two hundred five".

Divisors: 1 5 11 17 55 85 187 935 7080443 35402215 77884873 120367531 389424365 601837655 1324042841 6620214205