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55127238 = 2331311953
BaseRepresentation
bin1101001001001…
…0110011000110
310211201202100120
43102102303012
5103103032423
65245322410
71236400545
oct322226306
9124652316
1055127238
1129132a01
1216566406
13b56208a
14747015c
154c8dee3
hex3492cc6

55127238 has 32 divisors (see below), whose sum is σ = 114296832. Its totient is φ = 17707200.

The previous prime is 55127203. The next prime is 55127239. The reversal of 55127238 is 83272155.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55127199 and 55127208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55127239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57370 + ... + 58322.

It is an arithmetic number, because the mean of its divisors is an integer number (3571776).

Almost surely, 255127238 is an apocalyptic number.

55127238 is an abundant number, since it is smaller than the sum of its proper divisors (59169594).

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

55127238 is a wasteful number, since it uses less digits than its factorization.

55127238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300.

The product of its digits is 16800, while the sum is 33.

The square root of 55127238 is about 7424.7719156887. The cubic root of 55127238 is about 380.5882808671.

The spelling of 55127238 in words is "fifty-five million, one hundred twenty-seven thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 31 62 93 186 311 622 933 953 1866 1906 2859 5718 9641 19282 28923 29543 57846 59086 88629 177258 296383 592766 889149 1778298 9187873 18375746 27563619 55127238