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12996519448 = 2311178687513
BaseRepresentation
bin11000001101010011…
…10010011000011000
31020112202020121001011
430012221302120120
5203104102110243
65545344303304
7640031410153
oct140651623030
936482217034
1012996519448
11556a218470
122628611b34
1312c17536c3
148b4100c9a
15510eb589d
hex306a72618

12996519448 has 32 divisors (see below), whose sum is σ = 28147545360. Its totient is φ = 5560007680.

The previous prime is 12996519421. The next prime is 12996519461. The reversal of 12996519448 is 84491569921.

It is a junction number, because it is equal to n+sod(n) for n = 12996519392 and 12996519401.

It is a congruent number.

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, 4342261 + ... + 4345252.

Almost surely, 212996519448 is an apocalyptic number.

It is an amenable number.

12996519448 is an abundant number, since it is smaller than the sum of its proper divisors (15151025912).

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

12996519448 is a wasteful number, since it uses less digits than its factorization.

12996519448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687547 (or 8687543 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 58.

The spelling of 12996519448 in words is "twelve billion, nine hundred ninety-six million, five hundred nineteen thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 17 22 34 44 68 88 136 187 374 748 1496 8687513 17375026 34750052 69500104 95562643 147687721 191125286 295375442 382250572 590750884 764501144 1181501768 1624564931 3249129862 6498259724 12996519448