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10720000 = 285467
BaseRepresentation
bin101000111001…
…001100000000
3202011122002001
4220321030000
510221020000
61021433344
7160055434
oct50711400
922148061
1010720000
116062105
12370b854
1322b44c5
1415d09c4
15e1b46a
hexa39300

10720000 has 90 divisors (see below), whose sum is σ = 27138188. Its totient is φ = 4224000.

The previous prime is 10719997. The next prime is 10720007. The reversal of 10720000 is 2701.

It is a super-2 number, since 2×107200002 = 229836800000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (10720007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 159967 + ... + 160033.

Almost surely, 210720000 is an apocalyptic number.

10720000 is a gapful number since it is divisible by the number (10) 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 10720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13569094).

10720000 is an abundant number, since it is smaller than the sum of its proper divisors (16418188).

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

10720000 is an frugal number, since it uses more digits than its factorization.

10720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 10.

The square root of 10720000 is about 3274.1411087490. The cubic root of 10720000 is about 220.4947542899.

Adding to 10720000 its reverse (2701), we get a palindrome (10722701).

The spelling of 10720000 in words is "ten million, seven hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 67 80 100 125 128 134 160 200 250 256 268 320 335 400 500 536 625 640 670 800 1000 1072 1250 1280 1340 1600 1675 2000 2144 2500 2680 3200 3350 4000 4288 5000 5360 6400 6700 8000 8375 8576 10000 10720 13400 16000 16750 17152 20000 21440 26800 32000 33500 40000 41875 42880 53600 67000 80000 83750 85760 107200 134000 160000 167500 214400 268000 335000 428800 536000 670000 1072000 1340000 2144000 2680000 5360000 10720000