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3047680 = 2852381
BaseRepresentation
bin1011101000000100000000
312201211122001
423220010000
51240011210
6145153344
734622236
oct13500400
95654561
103047680
1117a1849
12102b854
1382927c
14594956
1540303a
hex2e8100

3047680 has 36 divisors (see below), whose sum is σ = 7303212. Its totient is φ = 1218560.

The previous prime is 3047669. The next prime is 3047683. The reversal of 3047680 is 867403.

It can be written as a sum of positive squares in 2 ways, for example, as 331776 + 2715904 = 576^2 + 1648^2 .

It is not an unprimeable number, because it can be changed into a prime (3047683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90 + ... + 2470.

It is an arithmetic number, because the mean of its divisors is an integer number (202867).

Almost surely, 23047680 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 3047680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3651606).

3047680 is an abundant number, since it is smaller than the sum of its proper divisors (4255532).

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

3047680 is an equidigital number, since it uses as much as digits as its factorization.

3047680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2388 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 3047680 is about 1745.7605792319. The cubic root of 3047680 is about 144.9850162876.

The spelling of 3047680 in words is "three million, forty-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 2381 4762 9524 11905 19048 23810 38096 47620 76192 95240 152384 190480 304768 380960 609536 761920 1523840 3047680