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13126471680 = 212357231327
BaseRepresentation
bin11000011100110011…
…00001000000000000
31020212210202211222210
430032121201000000
5203340334043210
610010305502120
7643200111510
oct141631410000
936783684883
1013126471680
115626607503
122664041940
13131265350a
148c748b840
1551c5d4e20
hex30e661000

13126471680 has 416 divisors, whose sum is σ = 50124201984. Its totient is φ = 2867724288.

The previous prime is 13126471667. The next prime is 13126471697. The reversal of 13126471680 is 8617462131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9891177 + ... + 9892503.

Almost surely, 213126471680 is an apocalyptic number.

13126471680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13126471680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25062100992).

13126471680 is an abundant number, since it is smaller than the sum of its proper divisors (36997730304).

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

13126471680 is a wasteful number, since it uses less digits than its factorization.

13126471680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1389 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 13126471680 in words is "thirteen billion, one hundred twenty-six million, four hundred seventy-one thousand, six hundred eighty".