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48130919 = 193249383
BaseRepresentation
bin1011011110011…
…0101101100111
310100120022012122
42313212231213
544310142134
64435340155
71123051244
oct267465547
9110508178
1048130919
1125194521
121415165b
139c82745
14656c5cb
15435b02e
hex2de6b67

48130919 has 4 divisors (see below), whose sum is σ = 48380496. Its totient is φ = 47881344.

The previous prime is 48130909. The next prime is 48130931. The reversal of 48130919 is 91903184.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-48130919 is a prime.

It is a super-2 number, since 2×481309192 = 4633170727569122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48130909) 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 3 ways as a sum of consecutive naturals, for example, 124499 + ... + 124884.

It is an arithmetic number, because the mean of its divisors is an integer number (12095124).

Almost surely, 248130919 is an apocalyptic number.

48130919 is a deficient number, since it is larger than the sum of its proper divisors (249577).

48130919 is a wasteful number, since it uses less digits than its factorization.

48130919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249576.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 48130919 is about 6937.6450615465. The cubic root of 48130919 is about 363.7542291955.

The spelling of 48130919 in words is "forty-eight million, one hundred thirty thousand, nine hundred nineteen".

Divisors: 1 193 249383 48130919