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228975207 = 3312462099
BaseRepresentation
bin11011010010111…
…10001001100111
3120221212010221020
431221132021213
5432104201312
634415422223
75450154126
oct1551361147
9527763836
10228975207
1110828350a
1264824973
13385909b6
14225a5abd
151517e78c
hexda5e267

228975207 has 8 divisors (see below), whose sum is σ = 315148800. Its totient is φ = 147725880.

The previous prime is 228975191. The next prime is 228975223. The reversal of 228975207 is 702579822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228975191) and next prime (228975223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228975207 - 24 = 228975191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228975287) 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, 1230957 + ... + 1231142.

It is an arithmetic number, because the mean of its divisors is an integer number (39393600).

Almost surely, 2228975207 is an apocalyptic number.

228975207 is a deficient number, since it is larger than the sum of its proper divisors (86173593).

228975207 is a wasteful number, since it uses less digits than its factorization.

228975207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462133.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 228975207 is about 15131.9267444698. The cubic root of 228975207 is about 611.7812372242.

The spelling of 228975207 in words is "two hundred twenty-eight million, nine hundred seventy-five thousand, two hundred seven".

Divisors: 1 3 31 93 2462099 7386297 76325069 228975207