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48409540 = 22517142381
BaseRepresentation
bin1011100010101…
…0101111000100
310101002110101221
42320222233010
544343101130
64445330124
71125321454
oct270525704
9111073357
1048409540
1125364893
1214266944
13a04c4ca
146601d64
1543b387a
hex2e2abc4

48409540 has 24 divisors (see below), whose sum is σ = 107640792. Its totient is φ = 18224640.

The previous prime is 48409531. The next prime is 48409573. The reversal of 48409540 is 4590484.

48409540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10291264 + 38118276 = 3208^2 + 6174^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 48409496 and 48409505.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70851 + ... + 71530.

It is an arithmetic number, because the mean of its divisors is an integer number (4485033).

Almost surely, 248409540 is an apocalyptic number.

It is an amenable number.

48409540 is an abundant number, since it is smaller than the sum of its proper divisors (59231252).

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

48409540 is a wasteful number, since it uses less digits than its factorization.

48409540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142407 (or 142405 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 48409540 is about 6957.6964578803. The cubic root of 48409540 is about 364.4547811558.

The spelling of 48409540 in words is "forty-eight million, four hundred nine thousand, five hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 142381 284762 569524 711905 1423810 2420477 2847620 4840954 9681908 12102385 24204770 48409540