Search a number
-
+
55147127 = 710376487
BaseRepresentation
bin1101001001011…
…1101001110111
310211202202122012
43102113221313
5103104202002
65245554435
71236512540
oct322275167
9124682565
1055147127
1129146942
1216575a1b
13b56b149
1474774c7
154c94d52
hex3497a77

55147127 has 8 divisors (see below), whose sum is σ = 63638016. Its totient is φ = 46809432.

The previous prime is 55147117. The next prime is 55147129. The reversal of 55147127 is 72174155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55147127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55147093 and 55147102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55147129) 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, 37523 + ... + 38964.

It is an arithmetic number, because the mean of its divisors is an integer number (7954752).

Almost surely, 255147127 is an apocalyptic number.

55147127 is a deficient number, since it is larger than the sum of its proper divisors (8490889).

55147127 is a wasteful number, since it uses less digits than its factorization.

55147127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76597.

The product of its digits is 9800, while the sum is 32.

The square root of 55147127 is about 7426.1111626476. Note that the first 4 decimals coincide. The cubic root of 55147127 is about 380.6340453594.

The spelling of 55147127 in words is "fifty-five million, one hundred forty-seven thousand, one hundred twenty-seven".

Divisors: 1 7 103 721 76487 535409 7878161 55147127