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1029228 = 223199431
BaseRepresentation
bin11111011010001101100
31221021211120
43323101230
5230413403
634020540
711514444
oct3732154
91837746
101029228
11643302
12417750
132a0615
141cb124
15154e53
hexfb46c

1029228 has 24 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 340560.

The previous prime is 1029209. The next prime is 1029247. The reversal of 1029228 is 8229201.

It is an interprime number because it is at equal distance from previous prime (1029209) and next prime (1029247).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1029198 and 1029207.

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, 2173 + ... + 2603.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

21029228 is an apocalyptic number.

It is an amenable number.

1029228 is an abundant number, since it is smaller than the sum of its proper divisors (1389972).

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

1029228 is a wasteful number, since it uses less digits than its factorization.

1029228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1029228 is about 1014.5087481141. The cubic root of 1029228 is about 100.9649258993.

The spelling of 1029228 in words is "one million, twenty-nine thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 12 199 398 431 597 796 862 1194 1293 1724 2388 2586 5172 85769 171538 257307 343076 514614 1029228