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25214733 = 34311293
BaseRepresentation
bin110000000101…
…1111100001101
31202110001010000
41200023330031
522423332413
62300234513
7424215225
oct140137415
952401100
1025214733
1113262225
12853ba39
1352bab7b
1434c5085
152331073
hex180bf0d

25214733 has 10 divisors (see below), whose sum is σ = 37666574. Its totient is φ = 16809768.

The previous prime is 25214699. The next prime is 25214737. The reversal of 25214733 is 33741252.

It can be written as a sum of positive squares in only one way, i.e., 22071204 + 3143529 = 4698^2 + 1773^2 .

It is not a de Polignac number, because 25214733 - 26 = 25214669 is a prime.

It is a super-2 number, since 2×252147332 = 1271565520522578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25214697 and 25214706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25214737) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 155566 + ... + 155727.

Almost surely, 225214733 is an apocalyptic number.

It is an amenable number.

25214733 is a deficient number, since it is larger than the sum of its proper divisors (12451841).

25214733 is an equidigital number, since it uses as much as digits as its factorization.

25214733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311305 (or 311296 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 25214733 is about 5021.4273867099. The cubic root of 25214733 is about 293.2365657336.

Adding to 25214733 its reverse (33741252), we get a palindrome (58955985).

The spelling of 25214733 in words is "twenty-five million, two hundred fourteen thousand, seven hundred thirty-three".

Divisors: 1 3 9 27 81 311293 933879 2801637 8404911 25214733