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55203037 = 192295273
BaseRepresentation
bin1101001010010…
…1010011011101
310211212121022221
43102211103131
5103112444122
65251105341
71240134541
oct322452335
9124777287
1055203037
112918494a
12165a2251
13b58a726
14748da21
154ca66c7
hex34a54dd

55203037 has 12 divisors (see below), whose sum is σ = 60281820. Its totient is φ = 50484672.

The previous prime is 55203023. The next prime is 55203041. The reversal of 55203037 is 73030255.

It can be written as a sum of positive squares in 2 ways, for example, as 28100601 + 27102436 = 5301^2 + 5206^2 .

It is not a de Polignac number, because 55203037 - 223 = 46814429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7833 + ... + 13105.

It is an arithmetic number, because the mean of its divisors is an integer number (5023485).

Almost surely, 255203037 is an apocalyptic number.

It is an amenable number.

55203037 is a deficient number, since it is larger than the sum of its proper divisors (5078783).

55203037 is a wasteful number, since it uses less digits than its factorization.

55203037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340 (or 5321 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 55203037 is about 7429.8746288211. The cubic root of 55203037 is about 380.7626350841.

The spelling of 55203037 in words is "fifty-five million, two hundred three thousand, thirty-seven".

Divisors: 1 19 29 361 551 5273 10469 100187 152917 1903553 2905423 55203037