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47111228672 = 28718929123
BaseRepresentation
bin101011111000000011…
…000100110100000000
311111121021002101100012
4223320003010310000
51232440433304142
633350445044052
73255313556624
oct537003046400
9144537071305
1047111228672
1118a86073432
129169556628
13459a430b91
1423ccbdd184
15135ae72882
hexaf80c4d00

47111228672 has 72 divisors (see below), whose sum is σ = 96437718720. Its totient is φ = 22962114560.

The previous prime is 47111228657. The next prime is 47111228701. The reversal of 47111228672 is 27682211174.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603103 + ... + 1632225.

It is an arithmetic number, because the mean of its divisors is an integer number (1339412760).

Almost surely, 247111228672 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 47111228672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48218859360).

47111228672 is an abundant number, since it is smaller than the sum of its proper divisors (49326490048).

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

47111228672 is an equidigital number, since it uses as much as digits as its factorization.

47111228672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29299 (or 29285 counting only the distinct ones).

The product of its digits is 75264, while the sum is 41.

The spelling of 47111228672 in words is "forty-seven billion, one hundred eleven million, two hundred twenty-eight thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 32 64 71 89 128 142 178 256 284 356 568 712 1136 1424 2272 2848 4544 5696 6319 9088 11392 12638 18176 22784 25276 29123 50552 58246 101104 116492 202208 232984 404416 465968 808832 931936 1617664 1863872 2067733 2591947 3727744 4135466 5183894 7455488 8270932 10367788 16541864 20735576 33083728 41471152 66167456 82942304 132334912 165884608 184028237 264669824 331769216 368056474 529339648 663538432 736112948 1472225896 2944451792 5888903584 11777807168 23555614336 47111228672