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23031013312212 = 2237391128859617
BaseRepresentation
bin1010011110010010100110…
…10111100000011011010100
310000112202001220202021111220
411033021103113200123110
511004320003401442322
6120552145040330340
74564635660051603
oct517112327403324
9100482056667456
1023031013312212
11737a441663254
1226bb6939139b0
13cb0a7a0c7249
145989c7db3a3a
1529e15216455c
hex14f2535e06d4

23031013312212 has 48 divisors (see below), whose sum is σ = 54534981188352. Its totient is φ = 7563528161280.

The previous prime is 23031013312007. The next prime is 23031013312253. The reversal of 23031013312212 is 21221331013032.

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, 13631773 + ... + 15227844.

It is an arithmetic number, because the mean of its divisors is an integer number (1136145441424).

Almost surely, 223031013312212 is an apocalyptic number.

It is an amenable number.

23031013312212 is an abundant number, since it is smaller than the sum of its proper divisors (31503967876140).

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

23031013312212 is a wasteful number, since it uses less digits than its factorization.

23031013312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28860608 (or 28860606 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 23031013312212 its reverse (21221331013032), we get a palindrome (44252344325244).

The spelling of 23031013312212 in words is "twenty-three trillion, thirty-one billion, thirteen million, three hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 911 1822 2733 3644 5466 10932 66503 133006 199509 266012 399018 798036 28859617 57719234 86578851 115438468 173157702 346315404 2106752041 4213504082 6320256123 8427008164 12640512246 25281024492 26291111087 52582222174 78873333261 105164444348 157746666522 315493333044 1919251109351 3838502218702 5757753328053 7677004437404 11515506656106 23031013312212