Search a number
-
+
2550304540 = 2257101180361
BaseRepresentation
bin1001100000000010…
…1000111100011100
320120201211220010201
42120000220330130
520210334221130
61101021513244
7120125142130
oct23000507434
96521756121
102550304540
111099642603
125b2112824
13318493354
141a29c73c0
15edd65bca
hex98028f1c

2550304540 has 48 divisors (see below), whose sum is σ = 6181366464. Its totient is φ = 865728000.

The previous prime is 2550304511. The next prime is 2550304543. The reversal of 2550304540 is 454030552.

It is a super-2 number, since 2×25503045402 = 13008106493489223200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 2550304499 and 2550304508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550304543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76041 + ... + 104320.

It is an arithmetic number, because the mean of its divisors is an integer number (128778468).

Almost surely, 22550304540 is an apocalyptic number.

2550304540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2550304540 is an abundant number, since it is smaller than the sum of its proper divisors (3631061924).

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

2550304540 is a wasteful number, since it uses less digits than its factorization.

2550304540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180478 (or 180476 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 2550304540 is about 50500.5399971129. The cubic root of 2550304540 is about 1366.2515930323.

The spelling of 2550304540 in words is "two billion, five hundred fifty million, three hundred four thousand, five hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 101 140 202 404 505 707 1010 1414 2020 2828 3535 7070 14140 180361 360722 721444 901805 1262527 1803610 2525054 3607220 5050108 6312635 12625270 18216461 25250540 36432922 72865844 91082305 127515227 182164610 255030454 364329220 510060908 637576135 1275152270 2550304540