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228277941 = 376092647
BaseRepresentation
bin11011001101100…
…11111010110101
3120220112201110120
431212303322311
5431414343231
634352442153
75441221233
oct1546637265
9526481416
10228277941
11107947661
1264549359
13383a8508
1422463953
1515092d96
hexd9b3eb5

228277941 has 4 divisors (see below), whose sum is σ = 304370592. Its totient is φ = 152185292.

The previous prime is 228277909. The next prime is 228277949. The reversal of 228277941 is 149772822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228277941 - 25 = 228277909 is a prime.

It is a super-2 number, since 2×2282779412 = 104221636694398962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228277893 and 228277902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228277949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38046321 + ... + 38046326.

It is an arithmetic number, because the mean of its divisors is an integer number (76092648).

Almost surely, 2228277941 is an apocalyptic number.

It is an amenable number.

228277941 is a deficient number, since it is larger than the sum of its proper divisors (76092651).

228277941 is an equidigital number, since it uses as much as digits as its factorization.

228277941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76092650.

The product of its digits is 112896, while the sum is 42.

The square root of 228277941 is about 15108.8696135747. The cubic root of 228277941 is about 611.1596153591.

The spelling of 228277941 in words is "two hundred twenty-eight million, two hundred seventy-seven thousand, nine hundred forty-one".

Divisors: 1 3 76092647 228277941