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54228207 = 3112316179
BaseRepresentation
bin1100111011011…
…1010011101111
310210001002010010
43032313103233
5102340300312
65214144303
71225634505
oct316672357
9123032103
1054228207
1128679500
12161b2093
13b308ac7
1472b8675
154b6293c
hex33b74ef

54228207 has 48 divisors (see below), whose sum is σ = 84439040. Its totient is φ = 30888000.

The previous prime is 54228179. The next prime is 54228221. The reversal of 54228207 is 70282245.

It is not a de Polignac number, because 54228207 - 210 = 54227183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54228247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 686394 + ... + 686472.

Almost surely, 254228207 is an apocalyptic number.

54228207 is a deficient number, since it is larger than the sum of its proper divisors (30210833).

54228207 is a wasteful number, since it uses less digits than its factorization.

54228207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 54228207 is about 7363.9803774861. The cubic root of 54228207 is about 378.5080163058.

The spelling of 54228207 in words is "fifty-four million, two hundred twenty-eight thousand, two hundred seven".

Divisors: 1 3 11 31 33 61 79 93 121 183 237 341 363 671 869 1023 1891 2013 2449 2607 3751 4819 5673 7347 7381 9559 11253 14457 20801 22143 26939 28677 53009 62403 80817 149389 159027 228811 296329 448167 583099 686433 888987 1643279 1749297 4929837 18076069 54228207