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750020 = 22537501
BaseRepresentation
bin10110111000111000100
31102002211112
42313013010
5143000040
624024152
76242435
oct2670704
91362745
10750020
11472557
12302058
132034cb
1415748c
15ec365
hexb71c4

750020 has 12 divisors (see below), whose sum is σ = 1575084. Its totient is φ = 300000.

The previous prime is 750019. The next prime is 750037. The reversal of 750020 is 20057.

750020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 276676 + 473344 = 526^2 + 688^2 .

It is a junction number, because it is equal to n+sod(n) for n = 749977 and 750004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18731 + ... + 18770.

It is an arithmetic number, because the mean of its divisors is an integer number (131257).

2750020 is an apocalyptic number.

It is an amenable number.

750020 is an abundant number, since it is smaller than the sum of its proper divisors (825064).

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

750020 is a wasteful number, since it uses less digits than its factorization.

750020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37510 (or 37508 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 750020 is about 866.0369507128. The cubic root of 750020 is about 90.8568372436.

Adding to 750020 its reverse (20057), we get a palindrome (770077).

The spelling of 750020 in words is "seven hundred fifty thousand, twenty".

Divisors: 1 2 4 5 10 20 37501 75002 150004 187505 375010 750020