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128008153 = 7131406683
BaseRepresentation
bin1111010000100…
…11111111011001
322220212111011201
413220103333121
5230232230103
620411354201
73113023420
oct750237731
9286774151
10128008153
1166291469
1236a52961
132069bc90
14130022b7
15b38851d
hex7a13fd9

128008153 has 8 divisors (see below), whose sum is σ = 157548608. Its totient is φ = 101281104.

The previous prime is 128008141. The next prime is 128008157. The reversal of 128008153 is 351800821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128008153 - 225 = 94453721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128008157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703251 + ... + 703432.

It is an arithmetic number, because the mean of its divisors is an integer number (19693576).

Almost surely, 2128008153 is an apocalyptic number.

128008153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

128008153 is a deficient number, since it is larger than the sum of its proper divisors (29540455).

128008153 is a wasteful number, since it uses less digits than its factorization.

128008153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406703.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 128008153 is about 11314.0688083465. The cubic root of 128008153 is about 503.9791198728.

Adding to 128008153 its reverse (351800821), we get a palindrome (479808974).

The spelling of 128008153 in words is "one hundred twenty-eight million, eight thousand, one hundred fifty-three".

Divisors: 1 7 13 91 1406683 9846781 18286879 128008153