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13223214452 = 2277319732839
BaseRepresentation
bin11000101000010101…
…00011110101110100
31021010112210220010102
430110022203311310
5204040120330302
610024043213232
7645453316430
oct142412436564
937115726112
1013223214452
115676183808
122690517218
1313296c6566
148d62719c0
15525d44702
hex3142a3d74

13223214452 has 48 divisors (see below), whose sum is σ = 26945614080. Its totient is φ = 5560918272.

The previous prime is 13223214413. The next prime is 13223214463. The reversal of 13223214452 is 25441232231.

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, 386249 + ... + 419087.

It is an arithmetic number, because the mean of its divisors is an integer number (561366960).

Almost surely, 213223214452 is an apocalyptic number.

It is an amenable number.

13223214452 is an abundant number, since it is smaller than the sum of its proper divisors (13722399628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223214452 is a wasteful number, since it uses less digits than its factorization.

13223214452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33120 (or 33118 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

Adding to 13223214452 its reverse (25441232231), we get a palindrome (38664446683).

The spelling of 13223214452 in words is "thirteen billion, two hundred twenty-three million, two hundred fourteen thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 73 146 197 292 394 511 788 1022 1379 2044 2758 5516 14381 28762 32839 57524 65678 100667 131356 201334 229873 402668 459746 919492 2397247 4794494 6469283 9588988 12938566 16780729 25877132 33561458 45284981 67122916 90569962 181139924 472257659 944515318 1889030636 3305803613 6611607226 13223214452