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42203133 = 337474751
BaseRepresentation
bin1010000011111…
…1011111111101
32221102010211000
42200333133331
541301000013
64104320513
71021502130
oct240773775
987363730
1042203133
1121905925
1212173139
13898858b
145868217
153a89973
hex283f7fd

42203133 has 32 divisors (see below), whose sum is σ = 72990720. Its totient is φ = 23598000.

The previous prime is 42203131. The next prime is 42203171. The reversal of 42203133 is 33130224.

It is not a de Polignac number, because 42203133 - 21 = 42203131 is a prime.

It is a super-2 number, since 2×422031332 = 3562208870031378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42203131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6508 + ... + 11258.

It is an arithmetic number, because the mean of its divisors is an integer number (2280960).

Almost surely, 242203133 is an apocalyptic number.

It is an amenable number.

42203133 is a deficient number, since it is larger than the sum of its proper divisors (30787587).

42203133 is a wasteful number, since it uses less digits than its factorization.

42203133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814 (or 4808 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 42203133 is about 6496.3938458194. The cubic root of 42203133 is about 348.1621568897.

Adding to 42203133 its reverse (33130224), we get a palindrome (75333357).

The spelling of 42203133 in words is "forty-two million, two hundred three thousand, one hundred thirty-three".

Divisors: 1 3 7 9 21 27 47 63 141 189 329 423 987 1269 2961 4751 8883 14253 33257 42759 99771 128277 223297 299313 669891 897939 1563079 2009673 4689237 6029019 14067711 42203133