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228246663 = 3111768113
BaseRepresentation
bin11011001101011…
…00010010000111
3120220111010120010
431212230102013
5431412343123
634352041303
75441031111
oct1546542207
9526433503
10228246663
11107926107
1264533233
13383971c8
14224563b1
1515088993
hexd9ac487

228246663 has 8 divisors (see below), whose sum is σ = 304605808. Its totient is φ = 152025984.

The previous prime is 228246649. The next prime is 228246679. The reversal of 228246663 is 366642822.

228246663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 228246663 - 24 = 228246647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228246643) 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, 30706 + ... + 37407.

It is an arithmetic number, because the mean of its divisors is an integer number (38075726).

Almost surely, 2228246663 is an apocalyptic number.

228246663 is a deficient number, since it is larger than the sum of its proper divisors (76359145).

228246663 is a wasteful number, since it uses less digits than its factorization.

228246663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69233.

The product of its digits is 165888, while the sum is 39.

The square root of 228246663 is about 15107.8344907535. The cubic root of 228246663 is about 611.1317009616.

The spelling of 228246663 in words is "two hundred twenty-eight million, two hundred forty-six thousand, six hundred sixty-three".

Divisors: 1 3 1117 3351 68113 204339 76082221 228246663