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6809530630 = 257531835453
BaseRepresentation
bin1100101011110000…
…10011000100000110
3122120120022222221011
412111320103010012
5102421214440010
63043411512434
7330514024660
oct62570230406
918516288834
106809530630
112984891171
1213a05b871a
13846a07986
14488539530
1529cc43a8a
hex195e13106

6809530630 has 32 divisors (see below), whose sum is σ = 14272490304. Its totient is φ = 2290644096.

The previous prime is 6809530619. The next prime is 6809530639. The reversal of 6809530630 is 360359086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809530639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 914017 + ... + 921436.

It is an arithmetic number, because the mean of its divisors is an integer number (446015322).

Almost surely, 26809530630 is an apocalyptic number.

6809530630 is an abundant number, since it is smaller than the sum of its proper divisors (7462959674).

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

6809530630 is a wasteful number, since it uses less digits than its factorization.

6809530630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835520.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 6809530630 is about 82519.8802107710. The cubic root of 6809530630 is about 1895.4211654071.

The spelling of 6809530630 in words is "six billion, eight hundred nine million, five hundred thirty thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 53 70 106 265 371 530 742 1855 3710 1835453 3670906 9177265 12848171 18354530 25696342 64240855 97279009 128481710 194558018 486395045 680953063 972790090 1361906126 3404765315 6809530630