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80438218203 = 3718672051629
BaseRepresentation
bin100101011101001111…
…1011100110111011011
321200121212200212100210
41022322133130313123
52304214140440303
6100541450102203
75545222400460
oct1127237346733
9250555625323
1080438218203
1131128305992
121370a71a963
13777bb67c25
143c7104b667
15215bbd1203
hex12ba7dcddb

80438218203 has 16 divisors (see below), whose sum is σ = 122638234880. Its totient is φ = 45940054176.

The previous prime is 80438218199. The next prime is 80438218271. The reversal of 80438218203 is 30281283408.

It is not a de Polignac number, because 80438218203 - 22 = 80438218199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80438218603) 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, 986608 + ... + 1065021.

It is an arithmetic number, because the mean of its divisors is an integer number (7664889680).

Almost surely, 280438218203 is an apocalyptic number.

80438218203 is a deficient number, since it is larger than the sum of its proper divisors (42200016677).

80438218203 is a wasteful number, since it uses less digits than its factorization.

80438218203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053506.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 80438218203 in words is "eighty billion, four hundred thirty-eight million, two hundred eighteen thousand, two hundred three".

Divisors: 1 3 7 21 1867 5601 13069 39207 2051629 6154887 14361403 43084209 3830391343 11491174029 26812739401 80438218203