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1020712 = 237111657
BaseRepresentation
bin11111001001100101000
31220212011011
43321030220
5230130322
633513304
711450560
oct3711450
91825134
101020712
11637970
12412834
13299794
141c7da0
15152677
hexf9328

1020712 has 32 divisors (see below), whose sum is σ = 2387520. Its totient is φ = 397440.

The previous prime is 1020709. The next prime is 1020743. The reversal of 1020712 is 2170201.

1020712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1020692 and 1020701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213 + ... + 1444.

It is an arithmetic number, because the mean of its divisors is an integer number (74610).

21020712 is an apocalyptic number.

It is an amenable number.

1020712 is an abundant number, since it is smaller than the sum of its proper divisors (1366808).

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

1020712 is a wasteful number, since it uses less digits than its factorization.

1020712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 1020712 is about 1010.3029248696. The cubic root of 1020712 is about 100.6856875792.

Adding to 1020712 its reverse (2170201), we get a palindrome (3190913).

The spelling of 1020712 in words is "one million, twenty thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 1657 3314 6628 11599 13256 18227 23198 36454 46396 72908 92792 127589 145816 255178 510356 1020712