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12299228 = 2217180871
BaseRepresentation
bin101110111010…
…101111011100
3212010212100222
4232322233130
511122033403
61115340512
7206353544
oct56725734
925125328
1012299228
116a40657
124151738
132718266
1418c2324
15112e338
hexbbabdc

12299228 has 12 divisors (see below), whose sum is σ = 22789872. Its totient is φ = 5787840.

The previous prime is 12299201. The next prime is 12299237. The reversal of 12299228 is 82299221.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 90368 + ... + 90503.

It is an arithmetic number, because the mean of its divisors is an integer number (1899156).

Almost surely, 212299228 is an apocalyptic number.

It is an amenable number.

12299228 is a deficient number, since it is larger than the sum of its proper divisors (10490644).

12299228 is a wasteful number, since it uses less digits than its factorization.

12299228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180892 (or 180890 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 12299228 is about 3507.0255202949. The cubic root of 12299228 is about 230.8301944803.

The spelling of 12299228 in words is "twelve million, two hundred ninety-nine thousand, two hundred twenty-eight".

Divisors: 1 2 4 17 34 68 180871 361742 723484 3074807 6149614 12299228