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2947072 = 2111439
BaseRepresentation
bin1011001111100000000000
312112201121211
423033200000
51223301242
6143055504
734023022
oct13174000
95481554
102947072
1117331a7
12ba1594
137c253b
1456a012
153d3317
hex2cf800

2947072 has 24 divisors (see below), whose sum is σ = 5896800. Its totient is φ = 1472512.

The previous prime is 2947027. The next prime is 2947097. The reversal of 2947072 is 2707492.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329 + ... + 2767.

It is an arithmetic number, because the mean of its divisors is an integer number (245700).

22947072 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 2947072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2948400).

2947072 is an abundant number, since it is smaller than the sum of its proper divisors (2949728).

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

2947072 is an equidigital number, since it uses as much as digits as its factorization.

2947072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461 (or 1441 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2947072 is about 1716.7038183682. The cubic root of 2947072 is about 143.3717486120.

The spelling of 2947072 in words is "two million, nine hundred forty-seven thousand, seventy-two".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 1439 2048 2878 5756 11512 23024 46048 92096 184192 368384 736768 1473536 2947072