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228861670 = 2550944963
BaseRepresentation
bin11011010010000…
…10011011100110
3120221122101012011
431221002123212
5432042033140
634413144434
75446202122
oct1551023346
9527571164
10228861670
11108206184
126478b11a
133855110b
1422576582
151515acea
hexda426e6

228861670 has 16 divisors (see below), whose sum is σ = 412769520. Its totient is φ = 91362784.

The previous prime is 228861653. The next prime is 228861671. The reversal of 228861670 is 76168822.

228861670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228861671) 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, 17392 + ... + 27571.

It is an arithmetic number, because the mean of its divisors is an integer number (25798095).

Almost surely, 2228861670 is an apocalyptic number.

228861670 is a deficient number, since it is larger than the sum of its proper divisors (183907850).

228861670 is a wasteful number, since it uses less digits than its factorization.

228861670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45479.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 228861670 is about 15128.1747081398. The cubic root of 228861670 is about 611.6801035820.

The spelling of 228861670 in words is "two hundred twenty-eight million, eight hundred sixty-one thousand, six hundred seventy".

Divisors: 1 2 5 10 509 1018 2545 5090 44963 89926 224815 449630 22886167 45772334 114430835 228861670