Search a number
-
+
54478497 = 397718587
BaseRepresentation
bin1100111111010…
…0011010100001
310210111210110010
43033310122201
5102421302442
65223355133
71231026303
oct317643241
9123453403
1054478497
112882a557
12162b2aa9
13b3959c8
147341973
154bb1b9c
hex33f46a1

54478497 has 8 divisors (see below), whose sum is σ = 72716256. Its totient is φ = 36279872.

The previous prime is 54478493. The next prime is 54478507. The reversal of 54478497 is 79487445.

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 54478497 - 22 = 54478493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54478493) 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, 6363 + ... + 12224.

It is an arithmetic number, because the mean of its divisors is an integer number (9089532).

Almost surely, 254478497 is an apocalyptic number.

It is an amenable number.

54478497 is a deficient number, since it is larger than the sum of its proper divisors (18237759).

54478497 is a wasteful number, since it uses less digits than its factorization.

54478497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19567.

The product of its digits is 1128960, while the sum is 48.

The square root of 54478497 is about 7380.9550195080. The cubic root of 54478497 is about 379.0894565861.

The spelling of 54478497 in words is "fifty-four million, four hundred seventy-eight thousand, four hundred ninety-seven".

Divisors: 1 3 977 2931 18587 55761 18159499 54478497