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228154090 = 25191200811
BaseRepresentation
bin11011001100101…
…01101011101010
3120220022102120111
431212111223222
5431401412330
634350044534
75440164163
oct1546255352
9526272514
10228154090
111078725aa
12644a974a
1338364028
142243076a
151506b32a
hexd995aea

228154090 has 16 divisors (see below), whose sum is σ = 432292320. Its totient is φ = 86458320.

The previous prime is 228154057. The next prime is 228154117. The reversal of 228154090 is 90451822.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600216 + ... + 600595.

It is an arithmetic number, because the mean of its divisors is an integer number (27018270).

Almost surely, 2228154090 is an apocalyptic number.

228154090 is a deficient number, since it is larger than the sum of its proper divisors (204138230).

228154090 is a wasteful number, since it uses less digits than its factorization.

228154090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200837.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 228154090 is about 15104.7704385072. The cubic root of 228154090 is about 611.0490682162.

The spelling of 228154090 in words is "two hundred twenty-eight million, one hundred fifty-four thousand, ninety".

Divisors: 1 2 5 10 19 38 95 190 1200811 2401622 6004055 12008110 22815409 45630818 114077045 228154090