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228037101 = 376012367
BaseRepresentation
bin11011001011110…
…01000111101101
3120220002111002120
431211321013231
5431334141401
634343343153
75436166125
oct1545710755
9526074076
10228037101
111077a2716
1264451ab9
13383229c6
14223ddc85
1515046836
hexd9791ed

228037101 has 4 divisors (see below), whose sum is σ = 304049472. Its totient is φ = 152024732.

The previous prime is 228037087. The next prime is 228037123. The reversal of 228037101 is 101730822.

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 228037101 - 26 = 228037037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228037141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38006181 + ... + 38006186.

It is an arithmetic number, because the mean of its divisors is an integer number (76012368).

Almost surely, 2228037101 is an apocalyptic number.

It is an amenable number.

228037101 is a deficient number, since it is larger than the sum of its proper divisors (76012371).

228037101 is an equidigital number, since it uses as much as digits as its factorization.

228037101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76012370.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 228037101 is about 15100.8973574420. The cubic root of 228037101 is about 610.9446092204.

Adding to 228037101 its reverse (101730822), we get a palindrome (329767923).

The spelling of 228037101 in words is "two hundred twenty-eight million, thirty-seven thousand, one hundred one".

Divisors: 1 3 76012367 228037101