Search a number
-
+
55174071 = 318391357
BaseRepresentation
bin1101001001111…
…0001110110111
310211211010121010
43102132032313
5103111032241
65250323303
71236654231
oct322361667
9124733533
1055174071
1129165107
1216589533
13b57a4a4
147483251
154c9cd16
hex349e3b7

55174071 has 4 divisors (see below), whose sum is σ = 73565432. Its totient is φ = 36782712.

The previous prime is 55174051. The next prime is 55174087. The reversal of 55174071 is 17047155.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55174071 - 223 = 46785463 is a prime.

It is a super-2 number, since 2×551740712 = 6088356221426082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55174051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9195676 + ... + 9195681.

It is an arithmetic number, because the mean of its divisors is an integer number (18391358).

Almost surely, 255174071 is an apocalyptic number.

55174071 is a deficient number, since it is larger than the sum of its proper divisors (18391361).

55174071 is a wasteful number, since it uses less digits than its factorization.

55174071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18391360.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 55174071 is about 7427.9250803976. The cubic root of 55174071 is about 380.6960258255.

The spelling of 55174071 in words is "fifty-five million, one hundred seventy-four thousand, seventy-one".

Divisors: 1 3 18391357 55174071