Search a number
-
+
27775048 = 237495983
BaseRepresentation
bin110100111110…
…1000001001000
31221021010012111
41221331001020
524102300143
62431152104
7455040550
oct151750110
957233174
1027775048
1114750894
129375634
1359a6352
143990160
15268999d
hex1a7d048

27775048 has 16 divisors (see below), whose sum is σ = 59518080. Its totient is φ = 11903568.

The previous prime is 27775043. The next prime is 27775103. The reversal of 27775048 is 84057772.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 27775048.

It is not an unprimeable number, because it can be changed into a prime (27775043) 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 3 ways as a sum of consecutive naturals, for example, 247936 + ... + 248047.

It is an arithmetic number, because the mean of its divisors is an integer number (3719880).

Almost surely, 227775048 is an apocalyptic number.

27775048 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27775048 is an abundant number, since it is smaller than the sum of its proper divisors (31743032).

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

27775048 is a wasteful number, since it uses less digits than its factorization.

27775048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495996 (or 495992 counting only the distinct ones).

The product of its (nonzero) digits is 109760, while the sum is 40.

The square root of 27775048 is about 5270.2037911261. The cubic root of 27775048 is about 302.8435111429.

The spelling of 27775048 in words is "twenty-seven million, seven hundred seventy-five thousand, forty-eight".

Divisors: 1 2 4 7 8 14 28 56 495983 991966 1983932 3471881 3967864 6943762 13887524 27775048