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1307803112928 = 2532137323920021
BaseRepresentation
bin10011000001111111001…
…000111101010111100000
311122000200001021122211200
4103001333020331113200
5132411340044103203
62440444011241200
7163325403020634
oct23017710752740
94560601248750
101307803112928
114646aa843454
12191564749200
139642c903120
1447425a40dc4
1524043ecd9a3
hex1307f23d5e0

1307803112928 has 288 divisors, whose sum is σ = 4077203195520. Its totient is φ = 395208253440.

The previous prime is 1307803112809. The next prime is 1307803112933. The reversal of 1307803112928 is 8292113087031.

1307803112928 is a `hidden beast` number, since 1 + 307 + 8 + 0 + 311 + 2 + 9 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65311558 + ... + 65331578.

It is an arithmetic number, because the mean of its divisors is an integer number (14156955540).

Almost surely, 21307803112928 is an apocalyptic number.

1307803112928 is a gapful number since it is divisible by the number (18) 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 1307803112928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2038601597760).

1307803112928 is an abundant number, since it is smaller than the sum of its proper divisors (2769400082592).

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

1307803112928 is a wasteful number, since it uses less digits than its factorization.

1307803112928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20362 (or 20351 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

Adding to 1307803112928 its reverse (8292113087031), we get a palindrome (9599916199959).

The spelling of 1307803112928 in words is "one trillion, three hundred seven billion, eight hundred three million, one hundred twelve thousand, nine hundred twenty-eight".