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228202912 = 2571018763
BaseRepresentation
bin11011001101000…
…01100110100000
3120220101220112201
431212201212200
5431404443122
634351102544
75440456420
oct1546414640
9526356481
10228202912
111078a6253
1264511a54
1338380312
1422444480
151507aa27
hexd9a19a0

228202912 has 24 divisors (see below), whose sum is σ = 513457056. Its totient is φ = 97801152.

The previous prime is 228202889. The next prime is 228202921. The reversal of 228202912 is 219202822.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509158 + ... + 509605.

It is an arithmetic number, because the mean of its divisors is an integer number (21394044).

Almost surely, 2228202912 is an apocalyptic number.

It is an amenable number.

228202912 is an abundant number, since it is smaller than the sum of its proper divisors (285254144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228202912 is a wasteful number, since it uses less digits than its factorization.

228202912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018780 (or 1018772 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 228202912 is about 15106.3864640092. The cubic root of 228202912 is about 611.0926506184.

The spelling of 228202912 in words is "two hundred twenty-eight million, two hundred two thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 1018763 2037526 4075052 7131341 8150104 14262682 16300208 28525364 32600416 57050728 114101456 228202912