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13122100012 = 2271727567437
BaseRepresentation
bin11000011100010001…
…10101101100101100
31020212111112202012011
430032020311230230
5203333224200022
610010032051004
7643115003230
oct141610655454
936774482164
1013122100012
1156240a0a5a
122662693a64
131311782728
148c6a705c0
1551c01e977
hex30e235b2c

13122100012 has 24 divisors (see below), whose sum is σ = 27787977504. Its totient is φ = 5292947712.

The previous prime is 13122099937. The next prime is 13122100039. The reversal of 13122100012 is 21000122131.

It is a junction number, because it is equal to n+sod(n) for n = 13122099965 and 13122100001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13783243 + ... + 13784194.

It is an arithmetic number, because the mean of its divisors is an integer number (1157832396).

Almost surely, 213122100012 is an apocalyptic number.

It is an amenable number.

13122100012 is an abundant number, since it is smaller than the sum of its proper divisors (14665877492).

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

13122100012 is a wasteful number, since it uses less digits than its factorization.

13122100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27567465 (or 27567463 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13122100012 its reverse (21000122131), we get a palindrome (34122222143).

The spelling of 13122100012 in words is "thirteen billion, one hundred twenty-two million, one hundred thousand, twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 27567437 55134874 110269748 192972059 385944118 468646429 771888236 937292858 1874585716 3280525003 6561050006 13122100012