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12253505 = 511222791
BaseRepresentation
bin101110101111…
…100101000001
3212001112122112
4232233211001
511114103010
61114345105
7206103335
oct56574501
925045575
1012253505
116a0a270
12412b195
1327004c4
1418ad7c5
151120a05
hexbaf941

12253505 has 8 divisors (see below), whose sum is σ = 16041024. Its totient is φ = 8911600.

The previous prime is 12253487. The next prime is 12253513. The reversal of 12253505 is 50535221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12253505 - 28 = 12253249 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 111341 + ... + 111450.

It is an arithmetic number, because the mean of its divisors is an integer number (2005128).

Almost surely, 212253505 is an apocalyptic number.

It is an amenable number.

12253505 is a deficient number, since it is larger than the sum of its proper divisors (3787519).

12253505 is a wasteful number, since it uses less digits than its factorization.

12253505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222807.

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 12253505 is about 3500.5006784744. The cubic root of 12253505 is about 230.5437983284.

Adding to 12253505 its reverse (50535221), we get a palindrome (62788726).

It can be divided in two parts, 1225350 and 5, that multiplied together give a triangular number (6126750 = T3500).

The spelling of 12253505 in words is "twelve million, two hundred fifty-three thousand, five hundred five".

Divisors: 1 5 11 55 222791 1113955 2450701 12253505