Search a number
-
+
1204300420 = 225376432531
BaseRepresentation
bin100011111001000…
…0010101010000100
310002221002210121021
41013302002222010
54431300103140
6315300200524
741562245641
oct10762025204
93087083537
101204300420
11568883804
12297399144
1316266b9cb
14b5d2cdc8
1570ad9b4a
hex47c82a84

1204300420 has 48 divisors (see below), whose sum is σ = 2602450368. Its totient is φ = 467786880.

The previous prime is 1204300403. The next prime is 1204300453. The reversal of 1204300420 is 240034021.

It is a super-2 number, since 2×12043004202 = 2900679003224352800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1204300394 and 1204300403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 474555 + ... + 477085.

It is an arithmetic number, because the mean of its divisors is an integer number (54217716).

Almost surely, 21204300420 is an apocalyptic number.

1204300420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204300420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301225184).

1204300420 is an abundant number, since it is smaller than the sum of its proper divisors (1398149948).

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

1204300420 is a wasteful number, since it uses less digits than its factorization.

1204300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1204300420 is about 34703.0318560209. The cubic root of 1204300420 is about 1063.9264664070.

Adding to 1204300420 its reverse (240034021), we get a palindrome (1444334441).

The spelling of 1204300420 in words is "one billion, two hundred four million, three hundred thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 643 740 1286 2531 2572 3215 5062 6430 10124 12655 12860 23791 25310 47582 50620 93647 95164 118955 187294 237910 374588 468235 475820 936470 1627433 1872940 3254866 6509732 8137165 16274330 32548660 60215021 120430042 240860084 301075105 602150210 1204300420