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228130333 = 3137919417
BaseRepresentation
bin11011001100011…
…11111000011101
3120220021012222121
431212033320131
5431400132313
634345342541
75440035004
oct1546177035
9526235877
10228130333
11107856772
1264497a51
1338356282
1422425c3b
151506428d
hexd98fe1d

228130333 has 8 divisors (see below), whose sum is σ = 236122880. Its totient is φ = 220177440.

The previous prime is 228130319. The next prime is 228130337. The reversal of 228130333 is 333031822.

It is a happy number.

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 228130333 - 29 = 228129821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228130298 and 228130307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228130337) 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 7 ways as a sum of consecutive naturals, for example, 2041 + ... + 21457.

It is an arithmetic number, because the mean of its divisors is an integer number (29515360).

Almost surely, 2228130333 is an apocalyptic number.

It is an amenable number.

228130333 is a deficient number, since it is larger than the sum of its proper divisors (7992547).

228130333 is a wasteful number, since it uses less digits than its factorization.

228130333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19827.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 228130333 is about 15103.9840108496. The cubic root of 228130333 is about 611.0278585787.

The spelling of 228130333 in words is "two hundred twenty-eight million, one hundred thirty thousand, three hundred thirty-three".

Divisors: 1 31 379 11749 19417 601927 7359043 228130333