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55134973 = 10325197
BaseRepresentation
bin1101001001010…
…0101011111101
310211202010222001
43102110223331
5103103304343
65245422301
71236432235
oct322245375
9124663861
1055134973
11291387a3
121656a991
13b56575a
147472cc5
154c9144d
hex3494afd

55134973 has 6 divisors (see below), whose sum is σ = 55686174. Its totient is φ = 54589176.

The previous prime is 55134971. The next prime is 55135007. The reversal of 55134973 is 37943155.

It can be written as a sum of positive squares in only one way, i.e., 46212804 + 8922169 = 6798^2 + 2987^2 .

It is not a de Polignac number, because 55134973 - 21 = 55134971 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 (55134971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8011 + ... + 13207.

It is an arithmetic number, because the mean of its divisors is an integer number (9281029).

Almost surely, 255134973 is an apocalyptic number.

It is an amenable number.

55134973 is a deficient number, since it is larger than the sum of its proper divisors (551201).

55134973 is an equidigital number, since it uses as much as digits as its factorization.

55134973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5403 (or 5300 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 55134973 is about 7425.2927888400. The cubic root of 55134973 is about 380.6060803723.

The spelling of 55134973 in words is "fifty-five million, one hundred thirty-four thousand, nine hundred seventy-three".

Divisors: 1 103 5197 10609 535291 55134973