Search a number
-
+
56145050 = 25213175081
BaseRepresentation
bin1101011000101…
…1010010011010
310220122110112022
43112023102122
5103333120200
65323214442
71251140123
oct326132232
9126573468
1056145050
1129768675
1216977422
13b82a430
14765704a
154de0885
hex358b49a

56145050 has 48 divisors (see below), whose sum is σ = 119101752. Its totient is φ = 19507200.

The previous prime is 56145029. The next prime is 56145053. The reversal of 56145050 is 5054165.

56145050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 74932+1.

It can be written as a sum of positive squares in 12 ways, for example, as 1 + 56145049 = 1^2 + 7493^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (56145053) 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 23 ways as a sum of consecutive naturals, for example, 8510 + ... + 13590.

Almost surely, 256145050 is an apocalyptic number.

56145050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56145050 is an abundant number, since it is smaller than the sum of its proper divisors (62956702).

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

56145050 is a wasteful number, since it uses less digits than its factorization.

56145050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123 (or 5118 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 56145050 is about 7493.0000667289. Note that the first 4 decimals coincide. The cubic root of 56145050 is about 382.9162739902.

The spelling of 56145050 in words is "fifty-six million, one hundred forty-five thousand, fifty".

Divisors: 1 2 5 10 13 17 25 26 34 50 65 85 130 170 221 325 425 442 650 850 1105 2210 5081 5525 10162 11050 25405 50810 66053 86377 127025 132106 172754 254050 330265 431885 660530 863770 1122901 1651325 2159425 2245802 3302650 4318850 5614505 11229010 28072525 56145050