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55126743 = 377136973
BaseRepresentation
bin1101001001001…
…0101011010111
310211201201200020
43102102223113
5103103023433
65245320223
71236366240
oct322225327
9124651606
1055126743
11291325a1
1216566073
13b561a99
14746dcc7
154c8dcb3
hex3492ad7

55126743 has 16 divisors (see below), whose sum is σ = 85188096. Its totient is φ = 31056480.

The previous prime is 55126741. The next prime is 55126751. The reversal of 55126743 is 34762155.

It is not a de Polignac number, because 55126743 - 21 = 55126741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55126741) 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, 16996 + ... + 19977.

It is an arithmetic number, because the mean of its divisors is an integer number (5324256).

Almost surely, 255126743 is an apocalyptic number.

55126743 is a deficient number, since it is larger than the sum of its proper divisors (30061353).

55126743 is a wasteful number, since it uses less digits than its factorization.

55126743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37054.

The product of its digits is 25200, while the sum is 33.

The square root of 55126743 is about 7424.7385812566. The cubic root of 55126743 is about 380.5871417341.

Adding to 55126743 its reverse (34762155), we get a palindrome (89888898).

The spelling of 55126743 in words is "fifty-five million, one hundred twenty-six thousand, seven hundred forty-three".

Divisors: 1 3 7 21 71 213 497 1491 36973 110919 258811 776433 2625083 7875249 18375581 55126743