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48309135261 = 3487213715473
BaseRepresentation
bin101100111111011100…
…101110011110011101
311121200202011100020220
4230333130232132131
51242414114312021
634105400231553
73330100605642
oct547734563635
9147622140226
1048309135261
111954027a382
12944276b5b9
13472b67154a
1424a3d45dc9
1513cb1e7cc6
hexb3f72e79d

48309135261 has 16 divisors (see below), whose sum is σ = 64578820224. Its totient is φ = 32122842624.

The previous prime is 48309135181. The next prime is 48309135299. The reversal of 48309135261 is 16253190384.

It is not a de Polignac number, because 48309135261 - 215 = 48309102493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48309135461) 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, 3114421 + ... + 3129893.

It is an arithmetic number, because the mean of its divisors is an integer number (4036176264).

Almost surely, 248309135261 is an apocalyptic number.

It is an amenable number.

48309135261 is a deficient number, since it is larger than the sum of its proper divisors (16269684963).

48309135261 is a wasteful number, since it uses less digits than its factorization.

48309135261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18100.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 48309135261 in words is "forty-eight billion, three hundred nine million, one hundred thirty-five thousand, two hundred sixty-one".

Divisors: 1 3 487 1461 2137 6411 15473 46419 1040719 3122157 7535351 22606053 33065801 99197403 16103045087 48309135261