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13222405445 = 56167647047
BaseRepresentation
bin11000101000001110…
…11110010101000101
31021010111021210101012
430110013132111011
5204034413433240
610024014012005
7645443410004
oct142407362505
937114253335
1013222405445
115675780a07
1226901a7005
1313294a2262
148d6100c3b
15525c34b65
hex3141de545

13222405445 has 16 divisors (see below), whose sum is σ = 16367726208. Its totient is φ = 10249208640.

The previous prime is 13222405423. The next prime is 13222405477. The reversal of 13222405445 is 54450422231.

It is not a de Polignac number, because 13222405445 - 212 = 13222401349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303089 + ... + 343958.

It is an arithmetic number, because the mean of its divisors is an integer number (1022982888).

Almost surely, 213222405445 is an apocalyptic number.

It is an amenable number.

13222405445 is a deficient number, since it is larger than the sum of its proper divisors (3145320763).

13222405445 is an equidigital number, since it uses as much as digits as its factorization.

13222405445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647180.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 13222405445 its reverse (54450422231), we get a palindrome (67672827676).

The spelling of 13222405445 in words is "thirteen billion, two hundred twenty-two million, four hundred five thousand, four hundred forty-five".

Divisors: 1 5 61 67 305 335 4087 20435 647047 3235235 39469867 43352149 197349335 216760745 2644481089 13222405445