Search a number
-
+
20530114450 = 25253137193293
BaseRepresentation
bin10011000111101100…
…001010111110010010
31221222210000212120021
4103013230022332102
5314021202130300
613233103334054
71324520044036
oct230754127622
957883025507
1020530114450
11878579493a
123b8b5b132a
131c22474b21
14dca87a1c6
15802581d1a
hex4c7b0af92

20530114450 has 96 divisors (see below), whose sum is σ = 39528001296. Its totient is φ = 7929692160.

The previous prime is 20530114421. The next prime is 20530114453. The reversal of 20530114450 is 5441103502.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 499656609 + 20030457841 = 22353^2 + 141529^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20530114453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70068504 + ... + 70068796.

Almost surely, 220530114450 is an apocalyptic number.

20530114450 is a deficient number, since it is larger than the sum of its proper divisors (18997886846).

20530114450 is a wasteful number, since it uses less digits than its factorization.

20530114450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 20530114450 its reverse (5441103502), we get a palindrome (25971217952).

The spelling of 20530114450 in words is "twenty billion, five hundred thirty million, one hundred fourteen thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 53 106 137 193 265 274 293 386 530 586 685 965 1325 1370 1465 1930 2650 2930 3425 4825 6850 7261 7325 9650 10229 14522 14650 15529 20458 26441 31058 36305 40141 51145 52882 56549 72610 77645 80282 102290 113098 132205 155290 181525 200705 255725 264410 282745 363050 388225 401410 511450 565490 661025 776450 1003525 1322050 1401373 1413725 2007050 2127473 2802746 2827450 2997097 4254946 5994194 7006865 7747213 10637365 14013730 14985485 15494426 21274730 29970970 35034325 38736065 53186825 70068650 74927425 77472130 106373650 149854850 193680325 387360650 410602289 821204578 2053011445 4106022890 10265057225 20530114450