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13345469280 = 25345111319379
BaseRepresentation
bin11000110110111001…
…11011001101100000
31021110001212002020000
430123130323031200
5204312420004110
610044131420000
7651466421463
oct143334731540
937401762200
1013345469280
115729195660
122705454600
131348b2c8b0
149085b72da
155319431c0
hex31b73b360

13345469280 has 960 divisors, whose sum is σ = 58398278400. Its totient is φ = 2821754880.

The previous prime is 13345469243. The next prime is 13345469281. The reversal of 13345469280 is 8296454331.

13345469280 is a `hidden beast` number, since 1 + 33 + 454 + 6 + 92 + 80 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345469281) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 35212131 + ... + 35212509.

It is an arithmetic number, because the mean of its divisors is an integer number (60831540).

Almost surely, 213345469280 is an apocalyptic number.

13345469280 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 13345469280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29199139200).

13345469280 is an abundant number, since it is smaller than the sum of its proper divisors (45052809120).

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

13345469280 is a wasteful number, since it uses less digits than its factorization.

13345469280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 13345469280 in words is "thirteen billion, three hundred forty-five million, four hundred sixty-nine thousand, two hundred eighty".