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701989 = 977237
BaseRepresentation
bin10101011011000100101
31022122221121
42223120211
5134430424
623013541
75652421
oct2533045
91278847
10701989
1143a462
1229a2b1
131b76a2
14143b81
15dcee4
hexab625

701989 has 4 divisors (see below), whose sum is σ = 709324. Its totient is φ = 694656.

The previous prime is 701969. The next prime is 702007. The reversal of 701989 is 989107.

701989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 989107 = 7141301.

It can be written as a sum of positive squares in 2 ways, for example, as 390625 + 311364 = 625^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 701989 - 25 = 701957 is a prime.

It is a super-2 number, since 2×7019892 = 985577112242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (701969) 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, 3522 + ... + 3715.

It is an arithmetic number, because the mean of its divisors is an integer number (177331).

2701989 is an apocalyptic number.

It is an amenable number.

701989 is a deficient number, since it is larger than the sum of its proper divisors (7335).

701989 is an equidigital number, since it uses as much as digits as its factorization.

701989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7334.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 701989 is about 837.8478382141. The cubic root of 701989 is about 88.8744178410.

It can be divided in two parts, 70198 and 9, that added together give a palindrome (70207).

The spelling of 701989 in words is "seven hundred one thousand, nine hundred eighty-nine".

Divisors: 1 97 7237 701989