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1028072 = 23128509
BaseRepresentation
bin11111010111111101000
31221020020202
43322333220
5230344242
634011332
711511203
oct3727750
91836222
101028072
11642451
12416b48
1329cc36
141ca93a
15154932
hexfafe8

1028072 has 8 divisors (see below), whose sum is σ = 1927650. Its totient is φ = 514032.

The previous prime is 1028063. The next prime is 1028081. The reversal of 1028072 is 2708201.

It is an interprime number because it is at equal distance from previous prime (1028063) and next prime (1028081).

It can be written as a sum of positive squares in only one way, i.e., 763876 + 264196 = 874^2 + 514^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64247 + ... + 64262.

21028072 is an apocalyptic number.

It is an amenable number.

1028072 is a deficient number, since it is larger than the sum of its proper divisors (899578).

1028072 is a wasteful number, since it uses less digits than its factorization.

1028072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128515 (or 128511 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1028072 is about 1013.9388541722. The cubic root of 1028072 is about 100.9271114147.

It can be divided in two parts, 10 and 28072, that added together give a palindrome (28082).

The spelling of 1028072 in words is "one million, twenty-eight thousand, seventy-two".

Divisors: 1 2 4 8 128509 257018 514036 1028072