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6138122530 = 25718645243
BaseRepresentation
bin1011011011101110…
…00101000100100010
3120211202221221011111
411231313011010202
5100032324410110
62453025133534
7305052115651
oct55567050442
916752857144
106138122530
11266a8a0341
12123378a2aa
1376a899687
144232c5198
1525dd1ce8a
hex16ddc5122

6138122530 has 16 divisors (see below), whose sum is σ = 11204236224. Its totient is φ = 2420667760.

The previous prime is 6138122509. The next prime is 6138122531. The reversal of 6138122530 is 352218316.

It is a junction number, because it is equal to n+sod(n) for n = 6138122492 and 6138122501.

It is not an unprimeable number, because it can be changed into a prime (6138122531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4321912 + ... + 4323331.

It is an arithmetic number, because the mean of its divisors is an integer number (700264764).

Almost surely, 26138122530 is an apocalyptic number.

6138122530 is a deficient number, since it is larger than the sum of its proper divisors (5066113694).

6138122530 is a wasteful number, since it uses less digits than its factorization.

6138122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645321.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 6138122530 is about 78346.1711253332. The cubic root of 6138122530 is about 1830.9585719268.

The spelling of 6138122530 in words is "six billion, one hundred thirty-eight million, one hundred twenty-two thousand, five hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 8645243 17290486 43226215 86452430 613812253 1227624506 3069061265 6138122530