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30898890153 = 335712004209
BaseRepresentation
bin11100110001101101…
…111010010110101001
32221202101201020212000
4130301231322112221
51001240103441103
622110022241213
72142463142565
oct346155722651
987671636760
1030898890153
111211668855a
125ba3b86209
132bb5690571
1416d19966a5
15c0c9d6aa3
hex731b7a5a9

30898890153 has 16 divisors (see below), whose sum is σ = 45856324800. Its totient is φ = 20563174080.

The previous prime is 30898890151. The next prime is 30898890157. The reversal of 30898890153 is 35109889803.

It is not a de Polignac number, because 30898890153 - 21 = 30898890151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30898890153.

It is not an unprimeable number, because it can be changed into a prime (30898890151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 986688 + ... + 1017521.

It is an arithmetic number, because the mean of its divisors is an integer number (2866020300).

Almost surely, 230898890153 is an apocalyptic number.

It is an amenable number.

30898890153 is a deficient number, since it is larger than the sum of its proper divisors (14957434647).

30898890153 is a wasteful number, since it uses less digits than its factorization.

30898890153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2004789 (or 2004783 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 30898890153 in words is "thirty billion, eight hundred ninety-eight million, eight hundred ninety thousand, one hundred fifty-three".

Divisors: 1 3 9 27 571 1713 5139 15417 2004209 6012627 18037881 54113643 1144403339 3433210017 10299630051 30898890153