Search a number
-
+
55368971 = 728231373
BaseRepresentation
bin1101001100110…
…1110100001011
310212012000221122
43103031310023
5103133301341
65254425455
71241425400
oct323156413
9125160848
1055368971
1129288589
121666228b
13b618108
1474d42a7
154cda94b
hex34cdd0b

55368971 has 12 divisors (see below), whose sum is σ = 64534032. Its totient is φ = 47366928.

The previous prime is 55368959. The next prime is 55368979. The reversal of 55368971 is 17986355.

It is a de Polignac number, because none of the positive numbers 2k-55368971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55368979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39641 + ... + 41013.

It is an arithmetic number, because the mean of its divisors is an integer number (5377836).

Almost surely, 255368971 is an apocalyptic number.

55368971 is a deficient number, since it is larger than the sum of its proper divisors (9165061).

55368971 is a wasteful number, since it uses less digits than its factorization.

55368971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210 (or 2203 counting only the distinct ones).

The product of its digits is 226800, while the sum is 44.

The square root of 55368971 is about 7441.0329256092. The cubic root of 55368971 is about 381.1437630716.

The spelling of 55368971 in words is "fifty-five million, three hundred sixty-eight thousand, nine hundred seventy-one".

Divisors: 1 7 49 823 1373 5761 9611 40327 67277 1129979 7909853 55368971