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2030421654 = 23497157823
BaseRepresentation
bin111100100000101…
…1100011010010110
312020111121002220000
41321001130122112
513124241443104
6533250552130
7101213204442
oct17101343226
95214532800
102030421654
11952135928
12487b98646
13264869241
14153937822
15bd3c1639
hex7905c696

2030421654 has 80 divisors (see below), whose sum is σ = 4631450208. Its totient is φ = 664754688.

The previous prime is 2030421649. The next prime is 2030421671. The reversal of 2030421654 is 4561240302.

2030421654 is a `hidden beast` number, since 2 + 0 + 3 + 0 + 4 + 2 + 1 + 654 = 666.

It is a super-2 number, since 2×20304216542 = 8245224186064191432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2466687 + ... + 2467509.

Almost surely, 22030421654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2030421654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2315725104).

2030421654 is an abundant number, since it is smaller than the sum of its proper divisors (2601028554).

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

2030421654 is a wasteful number, since it uses less digits than its factorization.

2030421654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2030421654 is about 45060.2003324442. The cubic root of 2030421654 is about 1266.2770782322.

Adding to 2030421654 its reverse (4561240302), we get a palindrome (6591661956).

The spelling of 2030421654 in words is "two billion, thirty million, four hundred twenty-one thousand, six hundred fifty-four".

Divisors: 1 2 3 6 9 18 27 54 81 97 157 162 194 291 314 471 582 823 873 942 1413 1646 1746 2469 2619 2826 4239 4938 5238 7407 7857 8478 12717 14814 15229 15714 22221 25434 30458 44442 45687 66663 79831 91374 129211 133326 137061 159662 239493 258422 274122 387633 411183 478986 718479 775266 822366 1162899 1233549 1436958 2155437 2325798 2467098 3488697 4310874 6466311 6977394 10466091 12533467 12932622 20932182 25066934 37600401 75200802 112801203 225602406 338403609 676807218 1015210827 2030421654