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545841378 = 23230324521
BaseRepresentation
bin100000100010001…
…110000011100010
31102001002121121100
4200202032003202
52104213411003
6130055135230
716345401165
oct4042160342
91361077540
10545841378
11260127785
12132974516
1389115684
14526c9adc
1532dc0ba3
hex2088e0e2

545841378 has 12 divisors (see below), whose sum is σ = 1182656358. Its totient is φ = 181947120.

The previous prime is 545841377. The next prime is 545841419. The reversal of 545841378 is 873148545.

545841378 is a `hidden beast` number, since 54 + 584 + 13 + 7 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 340291809 + 205549569 = 18447^2 + 14337^2 .

It is not an unprimeable number, because it can be changed into a prime (545841377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15162243 + ... + 15162278.

Almost surely, 2545841378 is an apocalyptic number.

545841378 is an abundant number, since it is smaller than the sum of its proper divisors (636814980).

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

545841378 is a wasteful number, since it uses less digits than its factorization.

545841378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30324529 (or 30324526 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 545841378 is about 23363.2484470803. The cubic root of 545841378 is about 817.2510455916.

The spelling of 545841378 in words is "five hundred forty-five million, eight hundred forty-one thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 9 18 30324521 60649042 90973563 181947126 272920689 545841378