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23230131312 = 2432574334349
BaseRepresentation
bin10101101000100111…
…111010110001110000
32012221221120221101210
4111220213322301300
5340033403200222
614401034200120
71451443600233
oct255047726160
965857527353
1023230131312
119940892533
124603883040
13226296613b
1411a52b541a
1590e61bd0c
hex5689fac70

23230131312 has 80 divisors (see below), whose sum is σ = 60397696800. Its totient is φ = 7693664256.

The previous prime is 23230131257. The next prime is 23230131313. The reversal of 23230131312 is 21313103232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230131313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5339314 + ... + 5343662.

It is an arithmetic number, because the mean of its divisors is an integer number (754971210).

Almost surely, 223230131312 is an apocalyptic number.

It is an amenable number.

23230131312 is an abundant number, since it is smaller than the sum of its proper divisors (37167565488).

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

23230131312 is a wasteful number, since it uses less digits than its factorization.

23230131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050 (or 5044 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23230131312 its reverse (21313103232), we get a palindrome (44543234544).

The spelling of 23230131312 in words is "twenty-three billion, two hundred thirty million, one hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 257 433 514 771 866 1028 1299 1542 1732 2056 2598 3084 3464 4112 4349 5196 6168 6928 8698 10392 12336 13047 17396 20784 26094 34792 52188 69584 104376 111281 208752 222562 333843 445124 667686 890248 1117693 1335372 1780496 1883117 2235386 2670744 3353079 3766234 4470772 5341488 5649351 6706158 7532468 8941544 11298702 13412316 15064936 17883088 22597404 26824632 30129872 45194808 53649264 90389616 483961069 967922138 1451883207 1935844276 2903766414 3871688552 5807532828 7743377104 11615065656 23230131312