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54512980 = 2252725649
BaseRepresentation
bin1100111111110…
…0110101010100
310210120112202021
43033330311110
5102423403410
65224222524
71231231654
oct317746524
9123515667
1054512980
1128853455
121630aa44
13b3a8602
147350364
154bbbeda
hex33fcd54

54512980 has 12 divisors (see below), whose sum is σ = 114477300. Its totient is φ = 21805184.

The previous prime is 54512977. The next prime is 54512981. The reversal of 54512980 is 8921545.

It can be written as a sum of positive squares in 2 ways, for example, as 31203396 + 23309584 = 5586^2 + 4828^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54512981) 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, 1362805 + ... + 1362844.

It is an arithmetic number, because the mean of its divisors is an integer number (9539775).

Almost surely, 254512980 is an apocalyptic number.

It is an amenable number.

54512980 is an abundant number, since it is smaller than the sum of its proper divisors (59964320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54512980 is a wasteful number, since it uses less digits than its factorization.

54512980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2725658 (or 2725656 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 54512980 is about 7383.2905943082. The cubic root of 54512980 is about 379.1694232112.

The spelling of 54512980 in words is "fifty-four million, five hundred twelve thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2725649 5451298 10902596 13628245 27256490 54512980