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750056 = 23295361
BaseRepresentation
bin10110111000111101000
31102002212212
42313013220
5143000211
624024252
76242516
oct2670750
91362785
10750056
1147258a
12302088
13203528
141574b6
15ec38b
hexb71e8

750056 has 32 divisors (see below), whose sum is σ = 1506600. Its totient is φ = 349440.

The previous prime is 750037. The next prime is 750059. The reversal of 750056 is 650057.

It can be written as a sum of positive squares in 4 ways, for example, as 532900 + 217156 = 730^2 + 466^2 .

It is not an unprimeable number, because it can be changed into a prime (750059) by changing a digit.

750056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 7 ways as a sum of consecutive naturals, for example, 12266 + ... + 12326.

2750056 is an apocalyptic number.

It is an amenable number.

750056 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

750056 is a wasteful number, since it uses less digits than its factorization.

750056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 750056 is about 866.0577347960. The cubic root of 750056 is about 90.8582908910.

Subtracting from 750056 its reverse (650057), we obtain a palindrome (99999).

The spelling of 750056 in words is "seven hundred fifty thousand, fifty-six".

Divisors: 1 2 4 8 29 53 58 61 106 116 122 212 232 244 424 488 1537 1769 3074 3233 3538 6148 6466 7076 12296 12932 14152 25864 93757 187514 375028 750056