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13223023140 = 2235969722727
BaseRepresentation
bin11000101000010011…
…10101001000100100
31021010112110011200210
430110021311020210
5204040043220030
610024035135420
7645451561605
oct142411651044
937115404623
1013223023140
115676062aa8
122690444570
13132965a462
148d6221dac
15525d07bb0
hex314275224

13223023140 has 48 divisors (see below), whose sum is σ = 37029912192. Its totient is φ = 3525620736.

The previous prime is 13223023139. The next prime is 13223023169. The reversal of 13223023140 is 4132032231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570457 + ... + 593183.

It is an arithmetic number, because the mean of its divisors is an integer number (771456504).

Almost surely, 213223023140 is an apocalyptic number.

13223023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223023140 is an abundant number, since it is smaller than the sum of its proper divisors (23806889052).

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

13223023140 is a wasteful number, since it uses less digits than its factorization.

13223023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32436 (or 32434 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13223023140 its reverse (4132032231), we get a palindrome (17355055371).

Subtracting from 13223023140 its reverse (4132032231), we obtain a palindrome (9090990909).

The spelling of 13223023140 in words is "thirteen billion, two hundred twenty-three million, twenty-three thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 9697 19394 22727 29091 38788 45454 48485 58182 68181 90908 96970 113635 116364 136362 145455 193940 227270 272724 290910 340905 454540 581820 681810 1363620 220383719 440767438 661151157 881534876 1101918595 1322302314 2203837190 2644604628 3305755785 4407674380 6611511570 13223023140