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3680880 = 243572313
BaseRepresentation
bin1110000010101001110000
320221000012220
432002221300
51420242010
6210521040
743200300
oct16025160
96830186
103680880
112094555
121296180
139bb548
146bb600
154ca970
hex382a70

3680880 has 120 divisors (see below), whose sum is σ = 13316112. Its totient is φ = 838656.

The previous prime is 3680869. The next prime is 3680881. The reversal of 3680880 is 880863.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3680881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11604 + ... + 11916.

Almost surely, 23680880 is an apocalyptic number.

3680880 is a gapful number since it is divisible by the number (30) 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 3680880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6658056).

3680880 is an abundant number, since it is smaller than the sum of its proper divisors (9635232).

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

3680880 is a wasteful number, since it uses less digits than its factorization.

3680880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 3680880 is about 1918.5619614701. The cubic root of 3680880 is about 154.4011579642.

It can be divided in two parts, 3680 and 880, that added together give a triangular number (4560 = T95).

The spelling of 3680880 in words is "three million, six hundred eighty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 49 56 60 70 80 84 98 105 112 120 140 147 168 196 210 240 245 280 294 313 336 392 420 490 560 588 626 735 784 840 939 980 1176 1252 1470 1565 1680 1878 1960 2191 2352 2504 2940 3130 3756 3920 4382 4695 5008 5880 6260 6573 7512 8764 9390 10955 11760 12520 13146 15024 15337 17528 18780 21910 25040 26292 30674 32865 35056 37560 43820 46011 52584 61348 65730 75120 76685 87640 92022 105168 122696 131460 153370 175280 184044 230055 245392 262920 306740 368088 460110 525840 613480 736176 920220 1226960 1840440 3680880