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228818515085023 = 1971169620841427
BaseRepresentation
bin110100000001101111110110…
…010011110100011011011111
31010000011211120202000110220211
4310001233312103310123133
5214442430304330210043
62130353435154353251
766124410053645503
oct6401576623643337
91100154522013824
10228818515085023
11669aa42952a776
12217b668988b827
139a8a654c7b036
144070c37874303
151b6c16487da9d
hexd01bf64f46df

228818515085023 has 8 divisors (see below), whose sum is σ = 244254011656320. Its totient is φ = 213722260196760.

The previous prime is 228818515085021. The next prime is 228818515085051. The reversal of 228818515085023 is 320580515818822.

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 228818515085023 - 21 = 228818515085021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228818515085021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84810419365 + ... + 84810422062.

It is an arithmetic number, because the mean of its divisors is an integer number (30531751457040).

Almost surely, 2228818515085023 is an apocalyptic number.

228818515085023 is a deficient number, since it is larger than the sum of its proper divisors (15435496571297).

228818515085023 is a wasteful number, since it uses less digits than its factorization.

228818515085023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169620841517.

The product of its (nonzero) digits is 12288000, while the sum is 58.

The spelling of 228818515085023 in words is "two hundred twenty-eight trillion, eight hundred eighteen billion, five hundred fifteen million, eighty-five thousand, twenty-three".

Divisors: 1 19 71 1349 169620841427 3222795987113 12043079741317 228818515085023