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6620653030 = 25662065303
BaseRepresentation
bin1100010101001111…
…10010010111100110
3122002101221000120111
412022213302113212
5102024341344110
63012543323234
7323031423265
oct61247622746
918071830514
106620653030
112898205682
1213492b051a
13816846094
1446b4105dc
1528b384e8a
hex18a9f25e6

6620653030 has 8 divisors (see below), whose sum is σ = 11917175472. Its totient is φ = 2648261208.

The previous prime is 6620653027. The next prime is 6620653031. The reversal of 6620653030 is 303560266.

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

It is a junction number, because it is equal to n+sod(n) for n = 6620652983 and 6620653001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620653031) 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, 331032642 + ... + 331032661.

It is an arithmetic number, because the mean of its divisors is an integer number (1489646934).

Almost surely, 26620653030 is an apocalyptic number.

6620653030 is a deficient number, since it is larger than the sum of its proper divisors (5296522442).

6620653030 is a wasteful number, since it uses less digits than its factorization.

6620653030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662065310.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 6620653030 is about 81367.3953743144. The cubic root of 6620653030 is about 1877.7320083288.

The spelling of 6620653030 in words is "six billion, six hundred twenty million, six hundred fifty-three thousand, thirty".

Divisors: 1 2 5 10 662065303 1324130606 3310326515 6620653030