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225486629 = 297775401
BaseRepresentation
bin11010111000010…
…10011100100101
3120201021220111122
431130022130211
5430211033004
634212543325
75405414264
oct1534123445
9521256448
10225486629
11106310495
1263621b45
133793bb54
1421d385db
1514be0cbe
hexd70a725

225486629 has 4 divisors (see below), whose sum is σ = 233262060. Its totient is φ = 217711200.

The previous prime is 225486607. The next prime is 225486649. The reversal of 225486629 is 926684522.

225486629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 926684522 = 2463342261.

It can be written as a sum of positive squares in 2 ways, for example, as 40934404 + 184552225 = 6398^2 + 13585^2 .

It is a cyclic number.

It is not a de Polignac number, because 225486629 - 212 = 225482533 is a prime.

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 225486629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225486649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3887672 + ... + 3887729.

It is an arithmetic number, because the mean of its divisors is an integer number (58315515).

Almost surely, 2225486629 is an apocalyptic number.

225486629 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

225486629 is a deficient number, since it is larger than the sum of its proper divisors (7775431).

225486629 is an equidigital number, since it uses as much as digits as its factorization.

225486629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775430.

The product of its digits is 414720, while the sum is 44.

The square root of 225486629 is about 15016.2122054798. The cubic root of 225486629 is about 608.6583691334.

The spelling of 225486629 in words is "two hundred twenty-five million, four hundred eighty-six thousand, six hundred twenty-nine".

Divisors: 1 29 7775401 225486629