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13122103112 = 231640262889
BaseRepresentation
bin11000011100010001…
…10110011101001000
31020212111112220102222
430032020312131020
5203333224244422
610010032113212
7643115015246
oct141610663510
936774486388
1013122103112
1156240a3318
122662695808
131311783c71
148c6a71796
1551c020842
hex30e236748

13122103112 has 8 divisors (see below), whose sum is σ = 24603943350. Its totient is φ = 6561051552.

The previous prime is 13122103097. The next prime is 13122103121. The reversal of 13122103112 is 21130122131.

It can be written as a sum of positive squares in only one way, i.e., 6919910596 + 6202192516 = 83186^2 + 78754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820131437 + ... + 820131452.

Almost surely, 213122103112 is an apocalyptic number.

It is an amenable number.

13122103112 is a deficient number, since it is larger than the sum of its proper divisors (11481840238).

13122103112 is a wasteful number, since it uses less digits than its factorization.

13122103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640262895 (or 1640262891 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13122103112 its reverse (21130122131), we get a palindrome (34252225243).

The spelling of 13122103112 in words is "thirteen billion, one hundred twenty-two million, one hundred three thousand, one hundred twelve".

Divisors: 1 2 4 8 1640262889 3280525778 6561051556 13122103112