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13203453441 = 337521228311
BaseRepresentation
bin11000100101111110…
…01011011000000001
31021002011121221010010
430102333023120001
5204020041002231
610022055455133
7645123334233
oct142277133001
937064557103
1013203453441
115666006aa2
1226859874a9
131325597b59
148d37aa253
1552423e546
hex312fcb601

13203453441 has 16 divisors (see below), whose sum is σ = 18115187328. Its totient is φ = 8547926400.

The previous prime is 13203453437. The next prime is 13203453479. The reversal of 13203453441 is 14435430231.

It is not a de Polignac number, because 13203453441 - 22 = 13203453437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13203453399 and 13203453408.

It is not an unprimeable number, because it can be changed into a prime (13203453481) 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, 56325 + ... + 171986.

It is an arithmetic number, because the mean of its divisors is an integer number (1132199208).

Almost surely, 213203453441 is an apocalyptic number.

It is an amenable number.

13203453441 is a deficient number, since it is larger than the sum of its proper divisors (4911733887).

13203453441 is a wasteful number, since it uses less digits than its factorization.

13203453441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228872.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 13203453441 its reverse (14435430231), we get a palindrome (27638883672).

The spelling of 13203453441 in words is "thirteen billion, two hundred three million, four hundred fifty-three thousand, four hundred forty-one".

Divisors: 1 3 37 111 521 1563 19277 57831 228311 684933 8447507 25342521 118950031 356850093 4401151147 13203453441