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48578538 = 2329279187
BaseRepresentation
bin1011100101001…
…1111111101010
310101102001020010
42321103333222
544414003123
64453112350
71126624251
oct271237752
9111361203
1048578538
112546a858
12143286b6
13a0ab3c8
146647798
1543e8993
hex2e53fea

48578538 has 16 divisors (see below), whose sum is σ = 100507680. Its totient is φ = 15634416.

The previous prime is 48578533. The next prime is 48578549. The reversal of 48578538 is 83587584.

It is not an unprimeable number, because it can be changed into a prime (48578533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139420 + ... + 139767.

It is an arithmetic number, because the mean of its divisors is an integer number (6281730).

Almost surely, 248578538 is an apocalyptic number.

48578538 is an abundant number, since it is smaller than the sum of its proper divisors (51929142).

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

48578538 is a wasteful number, since it uses less digits than its factorization.

48578538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279221.

The product of its digits is 1075200, while the sum is 48.

The square root of 48578538 is about 6969.8305574813. The cubic root of 48578538 is about 364.8783932163.

The spelling of 48578538 in words is "forty-eight million, five hundred seventy-eight thousand, five hundred thirty-eight".

Divisors: 1 2 3 6 29 58 87 174 279187 558374 837561 1675122 8096423 16192846 24289269 48578538