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48538509261 = 31128350910211
BaseRepresentation
bin101101001101000111…
…101101111111001101
311122021201202202020020
4231031013231333031
51243401324244021
634144232412353
73335554343544
oct551507557715
9148251682206
1048538509261
11196487a5470
1294a75470b9
1347670418c8
1424c65b315b
1513e14057c6
hexb4d1edfcd

48538509261 has 32 divisors (see below), whose sum is σ = 70997091840. Its totient is φ = 29252875200.

The previous prime is 48538509251. The next prime is 48538509269. The reversal of 48538509261 is 16290583584.

It is not a de Polignac number, because 48538509261 - 210 = 48538508237 is a prime.

It is a super-2 number, since 2×485385092612 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48538509269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4748446 + ... + 4758656.

It is an arithmetic number, because the mean of its divisors is an integer number (2218659120).

Almost surely, 248538509261 is an apocalyptic number.

It is an amenable number.

48538509261 is a deficient number, since it is larger than the sum of its proper divisors (22458582579).

48538509261 is a wasteful number, since it uses less digits than its factorization.

48538509261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11017.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 48538509261 in words is "forty-eight billion, five hundred thirty-eight million, five hundred nine thousand, two hundred sixty-one".

Divisors: 1 3 11 33 283 509 849 1527 3113 5599 9339 10211 16797 30633 112321 144047 336963 432141 1584517 2889713 4753551 5197399 8669139 15592197 31786843 57171389 95360529 171514167 1470863917 4412591751 16179503087 48538509261