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228143708 = 22134387379
BaseRepresentation
bin11011001100100…
…11001001011100
3120220021220022222
431212103021130
5431401044313
634345524512
75440122002
oct1546231134
9526256288
10228143708
11107865821
12644a3738
133835c3a0
142242aa72
1515068208
hexd99325c

228143708 has 12 divisors (see below), whose sum is σ = 429963240. Its totient is φ = 105297072.

The previous prime is 228143701. The next prime is 228143711. The reversal of 228143708 is 807341822.

228143708 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2281437083 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143701) 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, 2193638 + ... + 2193741.

It is an arithmetic number, because the mean of its divisors is an integer number (35830270).

Almost surely, 2228143708 is an apocalyptic number.

It is an amenable number.

228143708 is a deficient number, since it is larger than the sum of its proper divisors (201819532).

228143708 is a wasteful number, since it uses less digits than its factorization.

228143708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387396 (or 4387394 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 228143708 is about 15104.4267683352. The cubic root of 228143708 is about 611.0397996152.

The spelling of 228143708 in words is "two hundred twenty-eight million, one hundred forty-three thousand, seven hundred eight".

Divisors: 1 2 4 13 26 52 4387379 8774758 17549516 57035927 114071854 228143708