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1420712 = 23177589
BaseRepresentation
bin101011010110110101000
32200011211222
411122312220
5330430322
650241212
715035006
oct5326650
92604758
101420712
11890447
12586208
133a9877
1428da76
151d0e42
hex15ada8

1420712 has 8 divisors (see below), whose sum is σ = 2663850. Its totient is φ = 710352.

The previous prime is 1420697. The next prime is 1420717. The reversal of 1420712 is 2170241.

It can be written as a sum of positive squares in only one way, i.e., 1378276 + 42436 = 1174^2 + 206^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1420717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88787 + ... + 88802.

21420712 is an apocalyptic number.

It is an amenable number.

1420712 is a deficient number, since it is larger than the sum of its proper divisors (1243138).

1420712 is a wasteful number, since it uses less digits than its factorization.

1420712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177595 (or 177591 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 1420712 is about 1191.9362399055. The cubic root of 1420712 is about 112.4178692731.

Adding to 1420712 its reverse (2170241), we get a palindrome (3590953).

The spelling of 1420712 in words is "one million, four hundred twenty thousand, seven hundred twelve".

Divisors: 1 2 4 8 177589 355178 710356 1420712