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54392897 = 1314928081
BaseRepresentation
bin1100111101111…
…1100001000001
310210100110000202
43033133201001
5102411033042
65221454545
71230221606
oct317374101
9123313022
1054392897
1128781209
1216271455
13b365a60
14731c6ad
154b96632
hex33df841

54392897 has 8 divisors (see below), whose sum is σ = 58972200. Its totient is φ = 49870080.

The previous prime is 54392881. The next prime is 54392917. The reversal of 54392897 is 79829345.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1263376 + 53129521 = 1124^2 + 7289^2 .

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

It is not a de Polignac number, because 54392897 - 24 = 54392881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54392837) 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, 12104 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (7371525).

Almost surely, 254392897 is an apocalyptic number.

It is an amenable number.

54392897 is a deficient number, since it is larger than the sum of its proper divisors (4579303).

54392897 is a wasteful number, since it uses less digits than its factorization.

54392897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28243.

The product of its digits is 544320, while the sum is 47.

The square root of 54392897 is about 7375.1540322898. The cubic root of 54392897 is about 378.8908028666.

The spelling of 54392897 in words is "fifty-four million, three hundred ninety-two thousand, eight hundred ninety-seven".

Divisors: 1 13 149 1937 28081 365053 4184069 54392897