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48758909 = 1492291429
BaseRepresentation
bin1011101000000…
…0000001111101
310101202012122112
42322000001331
544440241114
64501023405
71131305153
oct272000175
9111665575
1048758909
1125583321
12143b4b65
13a142534
1466933d3
15443213e
hex2e8007d

48758909 has 8 divisors (see below), whose sum is σ = 49335000. Its totient is φ = 48186432.

The previous prime is 48758903. The next prime is 48758923. The reversal of 48758909 is 90985784.

It can be written as a sum of positive squares in 4 ways, for example, as 1452025 + 47306884 = 1205^2 + 6878^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48758909 - 28 = 48758653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48758903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33407 + ... + 34835.

It is an arithmetic number, because the mean of its divisors is an integer number (6166875).

Almost surely, 248758909 is an apocalyptic number.

It is an amenable number.

48758909 is a deficient number, since it is larger than the sum of its proper divisors (576091).

48758909 is a wasteful number, since it uses less digits than its factorization.

48758909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 48758909 is about 6982.7579794806. The cubic root of 48758909 is about 365.3294304872.

The spelling of 48758909 in words is "forty-eight million, seven hundred fifty-eight thousand, nine hundred nine".

Divisors: 1 149 229 1429 34121 212921 327241 48758909