Search a number
-
+
25230342020 = 22513432256739
BaseRepresentation
bin10111011111110110…
…000111011110000100
32102010100100011122212
4113133312013132010
5403132431421040
615331325442552
71552142240312
oct273766073604
972110304585
1025230342020
11a777963434
124a81710458
1324c1185380
141314bc70b2
159ca021d65
hex5dfd87784

25230342020 has 48 divisors (see below), whose sum is σ = 58386377280. Its totient is φ = 9099167616.

The previous prime is 25230342013. The next prime is 25230342037. The reversal of 25230342020 is 2024303252.

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, 1117190 + ... + 1139549.

It is an arithmetic number, because the mean of its divisors is an integer number (1216382860).

Almost surely, 225230342020 is an apocalyptic number.

25230342020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25230342020 is an abundant number, since it is smaller than the sum of its proper divisors (33156035260).

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

25230342020 is a wasteful number, since it uses less digits than its factorization.

25230342020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256804 (or 2256802 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 25230342020 its reverse (2024303252), we get a palindrome (27254645272).

The spelling of 25230342020 in words is "twenty-five billion, two hundred thirty million, three hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 43 52 65 86 130 172 215 260 430 559 860 1118 2236 2795 5590 11180 2256739 4513478 9026956 11283695 22567390 29337607 45134780 58675214 97039777 117350428 146688035 194079554 293376070 388159108 485198885 586752140 970397770 1261517101 1940795540 2523034202 5046068404 6307585505 12615171010 25230342020