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13122313012 = 227941526307
BaseRepresentation
bin11000011100010011…
…01001101100110100
31020212111221120101001
430032021221230310
5203333303004022
610010040413044
7643116551224
oct141611515464
936774846331
1013122313012
115624226a96
122662777184
131311828673
148c6ac8084
1551c062b27
hex30e269b34

13122313012 has 12 divisors (see below), whose sum is σ = 23254732480. Its totient is φ = 6478103736.

The previous prime is 13122312997. The next prime is 13122313021. The reversal of 13122313012 is 21031322131.

It is a super-3 number, since 3×131223130123 (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20762838 + ... + 20763469.

Almost surely, 213122313012 is an apocalyptic number.

It is an amenable number.

13122313012 is a deficient number, since it is larger than the sum of its proper divisors (10132419468).

13122313012 is a wasteful number, since it uses less digits than its factorization.

13122313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41526390 (or 41526388 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13122313012 its reverse (21031322131), we get a palindrome (34153635143).

The spelling of 13122313012 in words is "thirteen billion, one hundred twenty-two million, three hundred thirteen thousand, twelve".

Divisors: 1 2 4 79 158 316 41526307 83052614 166105228 3280578253 6561156506 13122313012