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13231453434 = 23191103105227
BaseRepresentation
bin11000101001010011…
…11111010011111010
31021011010022110212220
430110221333103322
5204044223002214
610024535544510
7645613332663
oct142451772372
937133273786
1013231453434
11567a8a0891
12269322b136
13132b31c6b4
148d73b836a
155269209a9
hex314a7f4fa

13231453434 has 32 divisors (see below), whose sum is σ = 27881210880. Its totient is φ = 4174525872.

The previous prime is 13231453427. The next prime is 13231453441. The reversal of 13231453434 is 43435413231.

It is an interprime number because it is at equal distance from previous prime (13231453427) and next prime (13231453441).

It is a super-2 number, since 2×132314534342 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13231453395 and 13231453404.

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, 73129 + ... + 178355.

It is an arithmetic number, because the mean of its divisors is an integer number (871287840).

Almost surely, 213231453434 is an apocalyptic number.

13231453434 is an abundant number, since it is smaller than the sum of its proper divisors (14649757446).

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

13231453434 is a wasteful number, since it uses less digits than its factorization.

13231453434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106354.

The product of its digits is 51840, while the sum is 33.

Adding to 13231453434 its reverse (43435413231), we get a palindrome (56666866665).

The spelling of 13231453434 in words is "thirteen billion, two hundred thirty-one million, four hundred fifty-three thousand, four hundred thirty-four".

Divisors: 1 2 3 6 19 38 57 114 1103 2206 3309 6618 20957 41914 62871 105227 125742 210454 315681 631362 1999313 3998626 5997939 11995878 116065381 232130762 348196143 696392286 2205242239 4410484478 6615726717 13231453434