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55748743 = 277313643
BaseRepresentation
bin1101010010101…
…0100010000111
310212220022220021
43110222202013
5103232424433
65310520011
71244566531
oct324524207
9125808807
1055748743
1129517946
1216806007
13b71bc2b
147592851
154d6322d
hex352a887

55748743 has 8 divisors (see below), whose sum is σ = 56216048. Its totient is φ = 55283904.

The previous prime is 55748723. The next prime is 55748761. The reversal of 55748743 is 34784755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55748743 - 217 = 55617671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55748743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55748723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86380 + ... + 87022.

It is an arithmetic number, because the mean of its divisors is an integer number (7027006).

Almost surely, 255748743 is an apocalyptic number.

55748743 is a deficient number, since it is larger than the sum of its proper divisors (467305).

55748743 is a wasteful number, since it uses less digits than its factorization.

55748743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233.

The product of its digits is 470400, while the sum is 43.

The square root of 55748743 is about 7466.5080861136. The cubic root of 55748743 is about 382.0131913429.

The spelling of 55748743 in words is "fifty-five million, seven hundred forty-eight thousand, seven hundred forty-three".

Divisors: 1 277 313 643 86701 178111 201259 55748743