Search a number
-
+
3874780 = 2257132129
BaseRepresentation
bin1110110001111111011100
321021212012101
432301333130
51442443110
6215014444
744635510
oct16617734
97255171
103874780
1122071a8
12136a424
13a58890
1472c140
1551813a
hex3b1fdc

3874780 has 48 divisors (see below), whose sum is σ = 10019520. Its totient is φ = 1225728.

The previous prime is 3874763. The next prime is 3874799. The reversal of 3874780 is 874783.

3874780 = 7412 + 7422 + ... + 7472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 756 + ... + 2884.

It is an arithmetic number, because the mean of its divisors is an integer number (208740).

Almost surely, 23874780 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 3874780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5009760).

3874780 is an abundant number, since it is smaller than the sum of its proper divisors (6144740).

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

3874780 is a wasteful number, since it uses less digits than its factorization.

3874780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2156 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 3874780 is about 1968.4460876539. The cubic root of 3874780 is about 157.0660600741.

The spelling of 3874780 in words is "three million, eight hundred seventy-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 2129 4258 8516 10645 14903 21290 27677 29806 42580 55354 59612 74515 110708 138385 149030 193739 276770 298060 387478 553540 774956 968695 1937390 3874780