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48778061 = 148732803
BaseRepresentation
bin1011101000010…
…0101101001101
310101210011220212
42322010231031
544441344221
64501252205
71131415043
oct272045515
9111704825
1048778061
1125596752
1214404065
13a14b177
14669a393
154437b5b
hex2e84b4d

48778061 has 4 divisors (see below), whose sum is σ = 48812352. Its totient is φ = 48743772.

The previous prime is 48778031. The next prime is 48778123. The reversal of 48778061 is 16087784.

48778061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 48778061 - 214 = 48761677 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 (48778001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14915 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (12203088).

Almost surely, 248778061 is an apocalyptic number.

It is an amenable number.

48778061 is a deficient number, since it is larger than the sum of its proper divisors (34291).

48778061 is a wasteful number, since it uses less digits than its factorization.

48778061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34290.

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 48778061 is about 6984.1292227450. The cubic root of 48778061 is about 365.3772567786.

The spelling of 48778061 in words is "forty-eight million, seven hundred seventy-eight thousand, sixty-one".

Divisors: 1 1487 32803 48778061