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56228894460 = 223257110634139
BaseRepresentation
bin110100010111100000…
…001101011011111100
312101010200120210110200
4310113200031123330
51410124044110320
641455312203500
74030255500624
oct642740153374
9171120523420
1056228894460
1121934821712
12aa92b39590
1353c139b7ab
142a15ac3884
1516e1643290
hexd1780d6fc

56228894460 has 144 divisors (see below), whose sum is σ = 173167787520. Its totient is φ = 14765708160.

The previous prime is 56228894441. The next prime is 56228894471. The reversal of 56228894460 is 6449882265.

56228894460 is a `hidden beast` number, since 5 + 622 + 8 + 8 + 9 + 4 + 4 + 6 + 0 = 666.

It is a super-3 number, since 3×562288944603 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56228894397 and 56228894406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13583071 + ... + 13587209.

It is an arithmetic number, because the mean of its divisors is an integer number (1202554080).

Almost surely, 256228894460 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56228894460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86583893760).

56228894460 is an abundant number, since it is smaller than the sum of its proper divisors (116938893060).

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

56228894460 is a wasteful number, since it uses less digits than its factorization.

56228894460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288 (or 5283 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 56228894460 in words is "fifty-six billion, two hundred twenty-eight million, eight hundred ninety-four thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 71 90 142 180 213 284 355 426 639 710 852 1063 1065 1278 1420 2126 2130 2556 3189 3195 4139 4252 4260 5315 6378 6390 8278 9567 10630 12417 12756 12780 15945 16556 19134 20695 21260 24834 31890 37251 38268 41390 47835 49668 62085 63780 74502 75473 82780 95670 124170 149004 150946 186255 191340 226419 248340 293869 301892 372510 377365 452838 587738 679257 745020 754730 881607 905676 1132095 1175476 1358514 1469345 1509460 1763214 2264190 2644821 2717028 2938690 3396285 3526428 4399757 4408035 4528380 5289642 5877380 6792570 8799514 8816070 10579284 13199271 13224105 13585140 17599028 17632140 21998785 26398542 26448210 39597813 43997570 52797084 52896420 65996355 79195626 87995140 131992710 158391252 197989065 263985420 312382747 395978130 624765494 791956260 937148241 1249530988 1561913735 1874296482 2811444723 3123827470 3748592964 4685741205 5622889446 6247654940 9371482410 11245778892 14057223615 18742964820 28114447230 56228894460