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1018112228 = 22754167211
BaseRepresentation
bin111100101011110…
…010100011100100
32121221202110102022
4330223302203210
54041114042403
6245005402312
734141545140
oct7453624344
92557673368
101018112228
11482774871
12244b69398
13132c0c293
1499304220
155e5acd38
hex3caf28e4

1018112228 has 24 divisors (see below), whose sum is σ = 2040018624. Its totient is φ = 435520800.

The previous prime is 1018112213. The next prime is 1018112233. The reversal of 1018112228 is 8222118101.

It is a junction number, because it is equal to n+sod(n) for n = 1018112197 and 1018112206.

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, 18458 + ... + 48753.

It is an arithmetic number, because the mean of its divisors is an integer number (85000776).

Almost surely, 21018112228 is an apocalyptic number.

It is an amenable number.

1018112228 is an abundant number, since it is smaller than the sum of its proper divisors (1021906396).

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

1018112228 is a wasteful number, since it uses less digits than its factorization.

1018112228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67763 (or 67761 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 1018112228 is about 31907.8709411957. The cubic root of 1018112228 is about 1006.0013214269.

The spelling of 1018112228 in words is "one billion, eighteen million, one hundred twelve thousand, two hundred twenty-eight".

Divisors: 1 2 4 7 14 28 541 1082 2164 3787 7574 15148 67211 134422 268844 470477 940954 1881908 36361151 72722302 145444604 254528057 509056114 1018112228