Search a number
-
+
48989905 = 521134637
BaseRepresentation
bin1011101011100…
…0011011010001
310102011221111221
42322320123101
5100020134110
64510005041
71133256466
oct272703321
9112157457
1048989905
1125720928
12144a6781
13a1c3713
14671366d
15447a7da
hex2eb86d1

48989905 has 8 divisors (see below), whose sum is σ = 58828392. Its totient is φ = 39164928.

The previous prime is 48989849. The next prime is 48989911. The reversal of 48989905 is 50998984.

It can be written as a sum of positive squares in 4 ways, for example, as 1669264 + 47320641 = 1292^2 + 6879^2 .

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 48989905 - 221 = 46892753 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8247 + ... + 12883.

It is an arithmetic number, because the mean of its divisors is an integer number (7353549).

Almost surely, 248989905 is an apocalyptic number.

It is an amenable number.

48989905 is a deficient number, since it is larger than the sum of its proper divisors (9838487).

48989905 is a wasteful number, since it uses less digits than its factorization.

48989905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755.

The product of its (nonzero) digits is 933120, while the sum is 52.

The square root of 48989905 is about 6999.2788914287. The cubic root of 48989905 is about 365.9054395545.

It can be divided in two parts, 48989 and 905, that added together give a palindrome (49894).

The spelling of 48989905 in words is "forty-eight million, nine hundred eighty-nine thousand, nine hundred five".

Divisors: 1 5 2113 4637 10565 23185 9797981 48989905