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23650225 = 522932621
BaseRepresentation
bin101101000110…
…1111110110001
31122111120000021
41122031332301
522023301400
62202523441
7405011044
oct132157661
948446007
1023650225
1112393845
127b06581
134b90a21
1431d8c5b
15212271a
hex168dfb1

23650225 has 12 divisors (see below), whose sum is σ = 30338460. Its totient is φ = 18267200.

The previous prime is 23650201. The next prime is 23650229. The reversal of 23650225 is 52205632.

It can be written as a sum of positive squares in 6 ways, for example, as 156816 + 23493409 = 396^2 + 4847^2 .

It is not a de Polignac number, because 23650225 - 213 = 23642033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 23650225.

It is not an unprimeable number, because it can be changed into a prime (23650229) 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, 15586 + ... + 17035.

It is an arithmetic number, because the mean of its divisors is an integer number (2528205).

Almost surely, 223650225 is an apocalyptic number.

23650225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23650225 is a deficient number, since it is larger than the sum of its proper divisors (6688235).

23650225 is a wasteful number, since it uses less digits than its factorization.

23650225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32660 (or 32655 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 23650225 is about 4863.1496995260. The cubic root of 23650225 is about 287.0417653003.

Adding to 23650225 its reverse (52205632), we get a palindrome (75855857).

The spelling of 23650225 in words is "twenty-three million, six hundred fifty thousand, two hundred twenty-five".

Divisors: 1 5 25 29 145 725 32621 163105 815525 946009 4730045 23650225