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228049001 = 1912002579
BaseRepresentation
bin11011001011111…
…00000001101001
3120220010002102022
431211330001221
5431340032001
634343514225
75436245615
oct1545740151
9526102368
10228049001
11107800654
1264458975
133832824b
1422404345
151504a11b
hexd97c069

228049001 has 4 divisors (see below), whose sum is σ = 240051600. Its totient is φ = 216046404.

The previous prime is 228048971. The next prime is 228049009. The reversal of 228049001 is 100940822.

228049001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-228049001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228049009) 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, 6001271 + ... + 6001308.

It is an arithmetic number, because the mean of its divisors is an integer number (60012900).

Almost surely, 2228049001 is an apocalyptic number.

It is an amenable number.

228049001 is a deficient number, since it is larger than the sum of its proper divisors (12002599).

228049001 is a wasteful number, since it uses less digits than its factorization.

228049001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12002598.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 228049001 is about 15101.2913686214. The cubic root of 228049001 is about 610.9552363133.

Adding to 228049001 its reverse (100940822), we get a palindrome (328989823).

The spelling of 228049001 in words is "two hundred twenty-eight million, forty-nine thousand, one".

Divisors: 1 19 12002579 228049001