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47796980 = 22571141757
BaseRepresentation
bin1011011001010…
…1001011110100
310022221100010112
42312111023310
544214000410
64424242152
71120160540
oct266251364
9108840115
1047796980
1124a86640
1214010358
139b9674a
1464c2a20
1542e2105
hex2d952f4

47796980 has 96 divisors (see below), whose sum is σ = 128362752. Its totient is φ = 14515200.

The previous prime is 47796953. The next prime is 47796997. The reversal of 47796980 is 8969774.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62762 + ... + 63518.

It is an arithmetic number, because the mean of its divisors is an integer number (1337112).

Almost surely, 247796980 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 47796980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64181376).

47796980 is an abundant number, since it is smaller than the sum of its proper divisors (80565772).

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

47796980 is a wasteful number, since it uses less digits than its factorization.

47796980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 47796980 is about 6913.5359983152. The cubic root of 47796980 is about 362.9110169514.

The spelling of 47796980 in words is "forty-seven million, seven hundred ninety-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 41 44 55 70 77 82 110 140 154 164 205 220 287 308 385 410 451 574 757 770 820 902 1148 1435 1514 1540 1804 2255 2870 3028 3157 3785 4510 5299 5740 6314 7570 8327 9020 10598 12628 15140 15785 16654 21196 26495 31037 31570 33308 41635 52990 58289 62074 63140 83270 105980 116578 124148 155185 166540 217259 233156 291445 310370 341407 434518 582890 620740 682814 869036 1086295 1165780 1365628 1707035 2172590 2389849 3414070 4345180 4779698 6828140 9559396 11949245 23898490 47796980