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1308493368 = 23327131923457
BaseRepresentation
bin100110111111110…
…0000011000111000
310101012011100110100
41031333200120320
510134433241433
6333501315400
744266003320
oct11577403070
93335140410
101308493368
11611679486
12306265b60
1317b11cb40
14c5ad2280
1579d1bb13
hex4dfe0638

1308493368 has 384 divisors, whose sum is σ = 4801305600. Its totient is φ = 312035328.

The previous prime is 1308493367. The next prime is 1308493399. The reversal of 1308493368 is 8633948031.

1308493368 is a `hidden beast` number, since 1 + 308 + 4 + 9 + 336 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1308493367) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2862996 + ... + 2863452.

It is an arithmetic number, because the mean of its divisors is an integer number (12503400).

Almost surely, 21308493368 is an apocalyptic number.

1308493368 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 1308493368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2400652800).

1308493368 is an abundant number, since it is smaller than the sum of its proper divisors (3492812232).

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

1308493368 is a wasteful number, since it uses less digits than its factorization.

1308493368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1308493368 is about 36173.1028251656. The cubic root of 1308493368 is about 1093.7645464275.

The spelling of 1308493368 in words is "one billion, three hundred eight million, four hundred ninety-three thousand, three hundred sixty-eight".