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10305725 = 522317923
BaseRepresentation
bin100111010100…
…000010111101
3201101120210112
4213110002331
510114240400
61004515405
7153411563
oct47240275
921346715
1010305725
1158a9931
12354bb65
13219aa81
141523a33
15d88835
hex9d40bd

10305725 has 12 divisors (see below), whose sum is σ = 13335456. Its totient is φ = 7885680.

The previous prime is 10305709. The next prime is 10305749. The reversal of 10305725 is 52750301.

10305725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10305725 - 24 = 10305709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10305725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8387 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (1111288).

Almost surely, 210305725 is an apocalyptic number.

It is an amenable number.

10305725 is a deficient number, since it is larger than the sum of its proper divisors (3029731).

10305725 is a wasteful number, since it uses less digits than its factorization.

10305725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17956 (or 17951 counting only the distinct ones).

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

The square root of 10305725 is about 3210.2531052862. The cubic root of 10305725 is about 217.6170154681.

The spelling of 10305725 in words is "ten million, three hundred five thousand, seven hundred twenty-five".

Divisors: 1 5 23 25 115 575 17923 89615 412229 448075 2061145 10305725