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228464260 = 225107106759
BaseRepresentation
bin11011001111000…
…01011010000100
3120220220012001021
431213201122010
5431441324020
634400440524
75442625363
oct1547413204
9526805037
10228464260
11107a64642
1264619144
133844226b
14224b17da
15150cd1aa
hexd9e1684

228464260 has 24 divisors (see below), whose sum is σ = 484263360. Its totient is φ = 90530784.

The previous prime is 228464161. The next prime is 228464261. The reversal of 228464260 is 62464822.

It is not an unprimeable number, because it can be changed into a prime (228464261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51240 + ... + 55519.

It is an arithmetic number, because the mean of its divisors is an integer number (20177640).

Almost surely, 2228464260 is an apocalyptic number.

228464260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228464260 is an abundant number, since it is smaller than the sum of its proper divisors (255799100).

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

228464260 is a wasteful number, since it uses less digits than its factorization.

228464260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106875 (or 106873 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 228464260 is about 15115.0342374736. The cubic root of 228464260 is about 611.3258450026.

The spelling of 228464260 in words is "two hundred twenty-eight million, four hundred sixty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1070 2140 106759 213518 427036 533795 1067590 2135180 11423213 22846426 45692852 57116065 114232130 228464260