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23320142331044 = 221321491613143537
BaseRepresentation
bin1010100110101101001001…
…10011001011110010100100
310001120101100211000020120212
411103112210303023302210
511024034122414043134
6121333043034514552
74624552603134506
oct523264463136244
9101511324006525
1023320142331044
117481020433499
122747724595a58
131002106962500
145a89b542bd76
152a692526bbce
hex1535a4ccbca4

23320142331044 has 72 divisors (see below), whose sum is σ = 44515454293800. Its totient is φ = 10684204357632.

The previous prime is 23320142331041. The next prime is 23320142331067. The reversal of 23320142331044 is 44013324102332.

It can be written as a sum of positive squares in 12 ways, for example, as 19073204474944 + 4246937856100 = 4367288^2 + 2060810^2 .

It is a super-2 number, since 2×233201423310442 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23320142331044.

It is not an unprimeable number, because it can be changed into a prime (23320142331041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162396044 + ... + 162539580.

It is an arithmetic number, because the mean of its divisors is an integer number (618270198525).

Almost surely, 223320142331044 is an apocalyptic number.

It is an amenable number.

23320142331044 is a deficient number, since it is larger than the sum of its proper divisors (21195311962756).

23320142331044 is a wasteful number, since it uses less digits than its factorization.

23320142331044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145329 (or 145314 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 23320142331044 its reverse (44013324102332), we get a palindrome (67333466433376).

The spelling of 23320142331044 in words is "twenty-three trillion, three hundred twenty billion, one hundred forty-two million, three hundred thirty-one thousand, forty-four".

Divisors: 1 2 4 13 26 52 149 169 298 338 596 676 1613 1937 3226 3874 6452 7748 20969 25181 41938 50362 83876 100724 143537 240337 272597 287074 480674 545194 574148 961348 1090388 1865981 3124381 3731962 6248762 7463924 12497524 21387013 24257753 40616953 42774026 48515506 81233906 85548052 97031012 162467812 231525181 278031169 463050362 556062338 926100724 1112124676 3009827353 3614405197 6019654706 7228810394 12039309412 14457620788 34497251969 39127755589 68994503938 78255511178 137989007876 156511022356 448464275597 896928551194 1793857102388 5830035582761 11660071165522 23320142331044