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28053040623 = 341523436087
BaseRepresentation
bin11010001000000101…
…110110110111101111
32200102001202010012120
4122020011312313233
5424423034244443
620515402004023
72012115624306
oct321005666757
980361663176
1028053040623
11109962346a3
12552aaa6613
132850bcc12a
141501a3943d
15ae2c42083
hex688176def

28053040623 has 16 divisors (see below), whose sum is σ = 38389698816. Its totient is φ = 18210951360.

The previous prime is 28053040601. The next prime is 28053040627. The reversal of 28053040623 is 32604035082.

It is a happy number.

It is not a de Polignac number, because 28053040623 - 213 = 28053032431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28053040627) 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, 153715 + ... + 282372.

It is an arithmetic number, because the mean of its divisors is an integer number (2399356176).

Almost surely, 228053040623 is an apocalyptic number.

28053040623 is a deficient number, since it is larger than the sum of its proper divisors (10336658193).

28053040623 is a wasteful number, since it uses less digits than its factorization.

28053040623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436654.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 28053040623 in words is "twenty-eight billion, fifty-three million, forty thousand, six hundred twenty-three".

Divisors: 1 3 41 123 523 1569 21443 64329 436087 1308261 17879567 53638701 228073501 684220503 9351013541 28053040623