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54351013 = 488911117
BaseRepresentation
bin1100111101010…
…1010010100101
310210021022120111
43033111102211
5102403213023
65220533021
71226655523
oct317252245
9123238514
1054351013
11287527a2
1216251171
13b34c982
14730b313
154b8900d
hex33d54a5

54351013 has 4 divisors (see below), whose sum is σ = 54367020. Its totient is φ = 54335008.

The previous prime is 54350987. The next prime is 54351019. The reversal of 54351013 is 31015345.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20629764 + 33721249 = 4542^2 + 5807^2 .

It is a cyclic number.

It is not a de Polignac number, because 54351013 - 29 = 54350501 is a prime.

It is a super-2 number, since 2×543510132 = 5908065228252338, 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 (54351019) 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, 670 + ... + 10447.

It is an arithmetic number, because the mean of its divisors is an integer number (13591755).

Almost surely, 254351013 is an apocalyptic number.

It is an amenable number.

54351013 is a deficient number, since it is larger than the sum of its proper divisors (16007).

54351013 is a wasteful number, since it uses less digits than its factorization.

54351013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16006.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 54351013 is about 7372.3139515352. The cubic root of 54351013 is about 378.7935258427.

Adding to 54351013 its reverse (31015345), we get a palindrome (85366358).

The spelling of 54351013 in words is "fifty-four million, three hundred fifty-one thousand, thirteen".

Divisors: 1 4889 11117 54351013