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6220484680 = 235155512117
BaseRepresentation
bin1011100101100010…
…10001000001001000
3121001111221100210111
411302301101001020
5100214421002210
62505130324104
7310102150564
oct56261210110
917044840714
106220484680
112702335233
121257289634
13781975c87
144302046a4
1526618b88a
hex172c51048

6220484680 has 16 divisors (see below), whose sum is σ = 13996090620. Its totient is φ = 2488193856.

The previous prime is 6220484593. The next prime is 6220484719. The reversal of 6220484680 is 864840226.

It can be written as a sum of positive squares in 2 ways, for example, as 5996024356 + 224460324 = 77434^2 + 14982^2 .

It is a super-2 number, since 2×62204846802 = 77388859308229404800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 155512117 = 6220484680 / (6 + 2 + 2 + 0 + 4 + 8 + 4 + 6 + 8 + 0).

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, 77756019 + ... + 77756098.

Almost surely, 26220484680 is an apocalyptic number.

It is an amenable number.

6220484680 is an abundant number, since it is smaller than the sum of its proper divisors (7775605940).

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

6220484680 is a wasteful number, since it uses less digits than its factorization.

6220484680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155512128 (or 155512124 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 6220484680 is about 78870.0493216531. The cubic root of 6220484680 is about 1839.1115630566. Note that the first 3 decimals are identical.

The spelling of 6220484680 in words is "six billion, two hundred twenty million, four hundred eighty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 155512117 311024234 622048468 777560585 1244096936 1555121170 3110242340 6220484680