Search a number
-
+
20452150460 = 2257253157719
BaseRepresentation
bin10011000011000010…
…110000110010111100
31221210100022220002002
4103003002300302330
5313341222303320
613221240321432
71322552260550
oct230302606274
957710286062
1020452150460
118745784395
123b69473278
131c0c2783a1
14dc0383860
157ea7d1675
hex4c30b0cbc

20452150460 has 48 divisors (see below), whose sum is σ = 49105405440. Its totient is φ = 7009273920.

The previous prime is 20452150429. The next prime is 20452150483. The reversal of 20452150460 is 6405125402.

It is a congruent number.

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, 325481 + ... + 383199.

It is an arithmetic number, because the mean of its divisors is an integer number (1023029280).

Almost surely, 220452150460 is an apocalyptic number.

20452150460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20452150460 is an abundant number, since it is smaller than the sum of its proper divisors (28653254980).

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

20452150460 is a wasteful number, since it uses less digits than its factorization.

20452150460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60266 (or 60264 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 20452150460 its reverse (6405125402), we get a palindrome (26857275862).

The spelling of 20452150460 in words is "twenty billion, four hundred fifty-two million, one hundred fifty thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2531 5062 10124 12655 17717 25310 35434 50620 57719 70868 88585 115438 177170 230876 288595 354340 404033 577190 808066 1154380 1616132 2020165 4040330 8080660 146086789 292173578 584347156 730433945 1022607523 1460867890 2045215046 2921735780 4090430092 5113037615 10226075230 20452150460