Search a number
-
+
5051808 = 25341949
BaseRepresentation
bin10011010001010110100000
3100111122210000
4103101112200
52243124213
6300140000
760640206
oct23212640
910448700
105051808
112940553
121837600
13107b548
14957076
1569bc73
hex4d15a0

5051808 has 60 divisors (see below), whose sum is σ = 14864850. Its totient is φ = 1683072.

The previous prime is 5051807. The next prime is 5051821. The reversal of 5051808 is 8081505.

It can be written as a sum of positive squares in only one way, i.e., 3640464 + 1411344 = 1908^2 + 1188^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5051803) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1618 + ... + 3566.

Almost surely, 25051808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5051808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7432425).

5051808 is an abundant number, since it is smaller than the sum of its proper divisors (9813042).

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

5051808 is a wasteful number, since it uses less digits than its factorization.

5051808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 5051808 is about 2247.6227441455. The cubic root of 5051808 is about 171.5861693582.

The spelling of 5051808 in words is "five million, fifty-one thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 1949 2592 3898 5847 7796 11694 15592 17541 23388 31184 35082 46776 52623 62368 70164 93552 105246 140328 157869 187104 210492 280656 315738 420984 561312 631476 841968 1262952 1683936 2525904 5051808