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25123330 = 253181043
BaseRepresentation
bin101111111010…
…1101000000010
31202021101201201
41133311220002
522412421310
62254251414
7423354601
oct137655002
952241651
1025123330
11131aa591
1284b6b6a
13528839b
14349da38
152313e3a
hex17f5a02

25123330 has 16 divisors (see below), whose sum is σ = 46681344. Its totient is φ = 9725040.

The previous prime is 25123303. The next prime is 25123369. The reversal of 25123330 is 3332152.

It is a junction number, because it is equal to n+sod(n) for n = 25123298 and 25123307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40212 + ... + 40831.

It is an arithmetic number, because the mean of its divisors is an integer number (2917584).

Almost surely, 225123330 is an apocalyptic number.

25123330 is a deficient number, since it is larger than the sum of its proper divisors (21558014).

25123330 is a wasteful number, since it uses less digits than its factorization.

25123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81081.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 25123330 is about 5012.3178271135. The cubic root of 25123330 is about 292.8818107886.

Adding to 25123330 its reverse (3332152), we get a palindrome (28455482).

The spelling of 25123330 in words is "twenty-five million, one hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 81043 162086 405215 810430 2512333 5024666 12561665 25123330