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54530465 = 5112173521
BaseRepresentation
bin1101000000000…
…1000110100001
310210121102201212
43100001012201
5102424433330
65224435505
71231333643
oct320010641
9123542655
1054530465
1128865600
1216318b95
13b3b3562
147356893
154bc2295
hex34011a1

54530465 has 24 divisors (see below), whose sum is σ = 72480744. Its totient is φ = 39353600.

The previous prime is 54530449. The next prime is 54530467. The reversal of 54530465 is 56403545.

It can be written as a sum of positive squares in 4 ways, for example, as 10387729 + 44142736 = 3223^2 + 6644^2 .

It is not a de Polignac number, because 54530465 - 24 = 54530449 is a prime.

It is a super-2 number, since 2×545304652 = 5947143226232450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54530467) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104405 + ... + 104925.

It is an arithmetic number, because the mean of its divisors is an integer number (3020031).

Almost surely, 254530465 is an apocalyptic number.

54530465 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54530465 is a deficient number, since it is larger than the sum of its proper divisors (17950279).

54530465 is a wasteful number, since it uses less digits than its factorization.

54530465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 54530465 is about 7384.4745920072. The cubic root of 54530465 is about 379.2099583196.

Subtracting 54530465 from its reverse (56403545), we obtain a triangular number (1873080 = T1935).

The spelling of 54530465 in words is "fifty-four million, five hundred thirty thousand, four hundred sixty-five".

Divisors: 1 5 11 55 121 173 521 605 865 1903 2605 5731 9515 20933 28655 63041 90133 104665 315205 450665 991463 4957315 10906093 54530465