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28630611174564 = 2232721273992
BaseRepresentation
bin1101000001010000101010…
…11010001010010010100100
310202101001121112000202021100
412200220111122022102210
512223040442430041224
6140520415440120100
76013331143415100
oct640502532122244
9122331545022240
1028630611174564
1191391a0678343
123264979906030
1312c8b16709429
1470da2c440900
15349b3426bac9
hex1a0a1568a4a4

28630611174564 has 81 divisors (see below), whose sum is σ = 84188291301387. Its totient is φ = 8180110412208.

The previous prime is 28630611174541. The next prime is 28630611174643. The reversal of 28630611174564 is 46547111603682.

The square root of 28630611174564 is 5350758.

It is a perfect power (a square), and thus also a powerful number.

28630611174564 is a `hidden beast` number, since 2 + 8 + 6 + 3 + 0 + 6 + 1 + 1 + 1 + 74 + 564 = 666.

It is a super-3 number, since 3×286306111745643 (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28630611174564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 224668137 + ... + 224795535.

Almost surely, 228630611174564 is an apocalyptic number.

28630611174564 is the 5350758-th square number.

It is an amenable number.

28630611174564 is an abundant number, since it is smaller than the sum of its proper divisors (55557680126823).

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

28630611174564 is an frugal number, since it uses more digits than its factorization.

28630611174564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254822 (or 127411 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 28630611174564 in words is "twenty-eight trillion, six hundred thirty billion, six hundred eleven million, one hundred seventy-four thousand, five hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 127399 254798 382197 509596 764394 891793 1146591 1528788 1783586 2293182 2675379 3567172 4586364 5350758 6242551 8026137 10701516 12485102 16052274 18727653 24970204 32104548 37455306 56182959 74910612 112365918 224731836 16230505201 32461010402 48691515603 64922020804 97383031206 113613536407 146074546809 194766062412 227227072814 292149093618 340840609221 454454145628 584298187236 681681218442 795294754849 1022521827663 1363362436884 1590589509698 2045043655326 2385884264547 3181179019396 4090087310652 4771768529094 7157652793641 9543537058188 14315305587282 28630611174564