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15023425 = 524114657
BaseRepresentation
bin111001010011…
…110101000001
31001021021021011
4321103311001
512321222200
61254000521
7241461034
oct71236501
931237234
1015023425
11853135a
125046141
133160201
141dd101b
1514bb5ba
hexe53d41

15023425 has 12 divisors (see below), whose sum is σ = 19084716. Its totient is φ = 11724800.

The previous prime is 15023423. The next prime is 15023429. The reversal of 15023425 is 52432051.

15023425 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 6 ways, for example, as 62001 + 14961424 = 249^2 + 3868^2 .

It is not a de Polignac number, because 15023425 - 21 = 15023423 is a prime.

It is a super-6 number, since 6×150234256 (a number of 44 digits) contains 666666 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15023396 and 15023405.

It is not an unprimeable number, because it can be changed into a prime (15023423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6304 + ... + 8353.

It is an arithmetic number, because the mean of its divisors is an integer number (1590393).

Almost surely, 215023425 is an apocalyptic number.

It is an amenable number.

15023425 is a deficient number, since it is larger than the sum of its proper divisors (4061291).

15023425 is a wasteful number, since it uses less digits than its factorization.

15023425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14708 (or 14703 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 15023425 is about 3876.0063209443. The cubic root of 15023425 is about 246.7495207017.

Adding to 15023425 its reverse (52432051), we get a palindrome (67455476).

The spelling of 15023425 in words is "fifteen million, twenty-three thousand, four hundred twenty-five".

Divisors: 1 5 25 41 205 1025 14657 73285 366425 600937 3004685 15023425