Search a number
-
+
21062000289 = 31119234333373
BaseRepresentation
bin10011100111011001…
…001001111010100001
32000100211212110202210
4103213121021322201
5321113333002124
613401543432333
71343636022441
oct234731117241
960324773683
1021062000289
118a28a4a610
1240b97556a9
131ca8712385
14103b372121
158340e7a29
hex4e7649ea1

21062000289 has 64 divisors (see below), whose sum is σ = 33737840640. Its totient is φ = 11537095680.

The previous prime is 21062000257. The next prime is 21062000291. The reversal of 21062000289 is 98200026012.

It is not a de Polignac number, because 21062000289 - 25 = 21062000257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21062000209) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6242607 + ... + 6245979.

It is an arithmetic number, because the mean of its divisors is an integer number (527153760).

Almost surely, 221062000289 is an apocalyptic number.

It is an amenable number.

21062000289 is a deficient number, since it is larger than the sum of its proper divisors (12675840351).

21062000289 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (21062000288) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (3862).

21062000289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862.

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 21062000289 in words is "twenty-one billion, sixty-two million, two hundred eighty-nine", and thus it is an aban number.

Divisors: 1 3 11 19 23 33 57 69 209 253 433 437 627 759 1299 1311 3373 4763 4807 8227 9959 10119 14289 14421 24681 29877 37103 64087 77579 90497 109549 111309 189221 192261 232737 271491 328647 567663 704957 853369 1460509 1474001 2081431 2114871 2560107 4381527 4422003 6244293 16065599 16214011 27749671 33591707 48196797 48642033 83249013 100775121 305246381 369508777 638242433 915739143 1108526331 1914727299 7020666763 21062000289