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47680560 = 24325471409
BaseRepresentation
bin1011010111100…
…0110000110000
310022201102102200
42311320300300
544201234220
64421543200
71116164244
oct265706060
9108642380
1047680560
1124a07124
1213b74b00
139b55765
146492424
1542bc890
hex2d78c30

47680560 has 120 divisors (see below), whose sum is σ = 163650240. Its totient is φ = 12435456.

The previous prime is 47680559. The next prime is 47680571. The reversal of 47680560 is 6508674.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33136 + ... + 34544.

It is an arithmetic number, because the mean of its divisors is an integer number (1363752).

Almost surely, 247680560 is an apocalyptic number.

47680560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47680560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81825120).

47680560 is an abundant number, since it is smaller than the sum of its proper divisors (115969680).

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

47680560 is a wasteful number, since it uses less digits than its factorization.

47680560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475 (or 1466 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 47680560 is about 6905.1111504450. Note that the first 4 decimals coincide. The cubic root of 47680560 is about 362.6161276773.

The spelling of 47680560 in words is "forty-seven million, six hundred eighty thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 47 48 60 72 80 90 94 120 141 144 180 188 235 240 282 360 376 423 470 564 705 720 752 846 940 1128 1409 1410 1692 1880 2115 2256 2818 2820 3384 3760 4227 4230 5636 5640 6768 7045 8454 8460 11272 11280 12681 14090 16908 16920 21135 22544 25362 28180 33816 33840 42270 50724 56360 63405 66223 67632 84540 101448 112720 126810 132446 169080 198669 202896 253620 264892 331115 338160 397338 507240 529784 596007 662230 794676 993345 1014480 1059568 1192014 1324460 1589352 1986690 2384028 2648920 2980035 3178704 3973380 4768056 5297840 5960070 7946760 9536112 11920140 15893520 23840280 47680560