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3787980 = 2235729311
BaseRepresentation
bin1110011100110011001100
321010110010120
432130303030
51432203410
6213104540
744124450
oct16346314
97113116
103787980
112157a69
121328150
13a28211
14708660
154ec570
hex39cccc

3787980 has 96 divisors (see below), whose sum is σ = 12579840. Its totient is φ = 833280.

The previous prime is 3787969. The next prime is 3787981. The reversal of 3787980 is 897873.

3787980 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a plaindrome in base 16.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3787981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12025 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (131040).

Almost surely, 23787980 is an apocalyptic number.

3787980 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 3787980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6289920).

3787980 is an abundant number, since it is smaller than the sum of its proper divisors (8791860).

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

3787980 is a wasteful number, since it uses less digits than its factorization.

3787980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 3787980 is about 1946.2733620949. The cubic root of 3787980 is about 155.8843653263.

The spelling of 3787980 in words is "three million, seven hundred eighty-seven thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 29 30 35 42 58 60 70 84 87 105 116 140 145 174 203 210 290 311 348 406 420 435 580 609 622 812 870 933 1015 1218 1244 1555 1740 1866 2030 2177 2436 3045 3110 3732 4060 4354 4665 6090 6220 6531 8708 9019 9330 10885 12180 13062 18038 18660 21770 26124 27057 32655 36076 43540 45095 54114 63133 65310 90190 108228 126266 130620 135285 180380 189399 252532 270570 315665 378798 541140 631330 757596 946995 1262660 1893990 3787980