Search a number
-
+
7255380 = 22351110993
BaseRepresentation
bin11011101011010101010100
3111122121111210
4123223111110
53324133010
6415301420
7115445466
oct33532524
914577453
107255380
114106090
12251a870
131670532
14d6c136
15984b20
hex6eb554

7255380 has 48 divisors (see below), whose sum is σ = 22163904. Its totient is φ = 1758720.

The previous prime is 7255357. The next prime is 7255403. The reversal of 7255380 is 835527.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7255357) and next prime (7255403).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4837 + ... + 6156.

It is an arithmetic number, because the mean of its divisors is an integer number (461748).

Almost surely, 27255380 is an apocalyptic number.

It is an amenable number.

7255380 is an abundant number, since it is smaller than the sum of its proper divisors (14908524).

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

7255380 is a wasteful number, since it uses less digits than its factorization.

7255380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11016 (or 11014 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 7255380 is about 2693.5812592161. The cubic root of 7255380 is about 193.5916944847.

It can be divided in two parts, 725 and 5380, that added together give a triangular number (6105 = T110).

The spelling of 7255380 in words is "seven million, two hundred fifty-five thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 10993 21986 32979 43972 54965 65958 109930 120923 131916 164895 219860 241846 329790 362769 483692 604615 659580 725538 1209230 1451076 1813845 2418460 3627690 7255380