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1022080 = 2751597
BaseRepresentation
bin11111001100010000000
31220221000211
43321202000
5230201310
633523504
711454553
oct3714200
91827024
101022080
116389a4
12413594
1329a2a7
141c869a
15152c8a
hexf9880

1022080 has 32 divisors (see below), whose sum is σ = 2444940. Its totient is φ = 408576.

The previous prime is 1022071. The next prime is 1022083. The reversal of 1022080 is 802201.

It can be written as a sum of positive squares in 2 ways, for example, as 968256 + 53824 = 984^2 + 232^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1022080.

It is not an unprimeable number, because it can be changed into a prime (1022083) 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, 159 + ... + 1438.

21022080 is an apocalyptic number.

1022080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022080 is an abundant number, since it is smaller than the sum of its proper divisors (1422860).

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

1022080 is an equidigital number, since it uses as much as digits as its factorization.

1022080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616 (or 1604 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1022080 is about 1010.9797228431. The cubic root of 1022080 is about 100.7306485255.

Adding to 1022080 its reverse (802201), we get a palindrome (1824281).

The spelling of 1022080 in words is "one million, twenty-two thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 1597 3194 6388 7985 12776 15970 25552 31940 51104 63880 102208 127760 204416 255520 511040 1022080