Search a number
-
+
3187380 = 223577589
BaseRepresentation
bin1100001010001010110100
312222221021010
430022022310
51303444010
6152152220
736043440
oct14121264
95887233
103187380
1118877a9
121098670
13877a31
145cd820
1542e620
hex30a2b4

3187380 has 48 divisors (see below), whose sum is σ = 10200960. Its totient is φ = 728448.

The previous prime is 3187343. The next prime is 3187397. The reversal of 3187380 is 837813.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3375 + ... + 4214.

It is an arithmetic number, because the mean of its divisors is an integer number (212520).

Almost surely, 23187380 is an apocalyptic number.

3187380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3187380 is an abundant number, since it is smaller than the sum of its proper divisors (7013580).

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

3187380 is a wasteful number, since it uses less digits than its factorization.

3187380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608 (or 7606 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 3187380 is about 1785.3235000974. The cubic root of 3187380 is about 147.1672860706.

The spelling of 3187380 in words is "three million, one hundred eighty-seven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 7589 15178 22767 30356 37945 45534 53123 75890 91068 106246 113835 151780 159369 212492 227670 265615 318738 455340 531230 637476 796845 1062460 1593690 3187380