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228073211473 = 5329921143821
BaseRepresentation
bin1101010001101000111…
…0010000011001010001
3210210200210222120220111
43110122032100121101
512214043220231343
6252435252241321
722322603211412
oct3243216203121
9723623876814
10228073211473
11887a8422518
1238251310241
1318679461403
14b07868b809
155decd4cc9d
hex351a390651

228073211473 has 8 divisors (see below), whose sum is σ = 232385861736. Its totient is φ = 223760908800.

The previous prime is 228073211459. The next prime is 228073211477. The reversal of 228073211473 is 374112370822.

It can be written as a sum of positive squares in 4 ways, for example, as 53209571584 + 174863639889 = 230672^2 + 418167^2 .

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 228073211473 - 25 = 228073211441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228073211477) 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, 1513903 + ... + 1657723.

It is an arithmetic number, because the mean of its divisors is an integer number (29048232717).

Almost surely, 2228073211473 is an apocalyptic number.

It is an amenable number.

228073211473 is a deficient number, since it is larger than the sum of its proper divisors (4312650263).

228073211473 is a wasteful number, since it uses less digits than its factorization.

228073211473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173795.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 228073211473 in words is "two hundred twenty-eight billion, seventy-three million, two hundred eleven thousand, four hundred seventy-three".

Divisors: 1 53 29921 143821 1585813 7622513 4303268141 228073211473