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12415421053 = 77335836781
BaseRepresentation
bin10111001000000010…
…00100101001111101
31012001020210201220101
423210001010221331
5200411321433203
65411545321101
7616444223560
oct134401045175
935036721811
1012415421053
1152a11aa662
1224a5a96191
13122b2452b9
1485ac784d7
154c9e7d41d
hex2e4044a7d

12415421053 has 16 divisors (see below), whose sum is σ = 14389559296. Its totient is φ = 10491534720.

The previous prime is 12415421023. The next prime is 12415421059. The reversal of 12415421053 is 35012451421.

It is a cyclic number.

It is not a de Polignac number, because 12415421053 - 25 = 12415421021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12415421059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1827523 + ... + 1834303.

It is an arithmetic number, because the mean of its divisors is an integer number (899347456).

Almost surely, 212415421053 is an apocalyptic number.

It is an amenable number.

12415421053 is a deficient number, since it is larger than the sum of its proper divisors (1974138243).

12415421053 is an equidigital number, since it uses as much as digits as its factorization.

12415421053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 12415421053 its reverse (35012451421), we get a palindrome (47427872474).

The spelling of 12415421053 in words is "twelve billion, four hundred fifteen million, four hundred twenty-one thousand, fifty-three".

Divisors: 1 7 73 511 3583 6781 25081 47467 261559 495013 1830913 3465091 24296323 170074261 1773631579 12415421053