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48919131 = 3219328163
BaseRepresentation
bin1011101010011…
…1001001011011
310102001100102200
42322213021123
5100010403011
64504301243
71132543242
oct272471133
9112040380
1048919131
1125682738
1214471823
13a19a441
1466d5959
154464856
hex2ea725b

48919131 has 12 divisors (see below), whose sum is σ = 71029608. Its totient is φ = 32442624.

The previous prime is 48919127. The next prime is 48919141. The reversal of 48919131 is 13191984.

It is not a de Polignac number, because 48919131 - 22 = 48919127 is a prime.

It is a super-2 number, since 2×489191312 = 4786162755590322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (48919141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12345 + ... + 15818.

It is an arithmetic number, because the mean of its divisors is an integer number (5919134).

Almost surely, 248919131 is an apocalyptic number.

48919131 is a deficient number, since it is larger than the sum of its proper divisors (22110477).

48919131 is a wasteful number, since it uses less digits than its factorization.

48919131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28362 (or 28359 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 48919131 is about 6994.2212575811. The cubic root of 48919131 is about 365.7291510434.

The spelling of 48919131 in words is "forty-eight million, nine hundred nineteen thousand, one hundred thirty-one".

Divisors: 1 3 9 193 579 1737 28163 84489 253467 5435459 16306377 48919131