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575139378 = 231123132531
BaseRepresentation
bin100010010001111…
…110111000110010
31111002020002220110
4202101332320302
52134213430003
6133023122150
720152414122
oct4221767062
91432202813
10575139378
11275718800
12140743356
1392202c78
1456554c82
153575ba03
hex2247ee32

575139378 has 48 divisors (see below), whose sum is σ = 1268896608. Its totient is φ = 173659200.

The previous prime is 575139371. The next prime is 575139379. The reversal of 575139378 is 873931575.

575139378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (575139371) 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, 225973 + ... + 228503.

It is an arithmetic number, because the mean of its divisors is an integer number (26435346).

Almost surely, 2575139378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 575139378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (634448304).

575139378 is an abundant number, since it is smaller than the sum of its proper divisors (693757230).

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

575139378 is a wasteful number, since it uses less digits than its factorization.

575139378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871 (or 2860 counting only the distinct ones).

The product of its digits is 793800, while the sum is 48.

The square root of 575139378 is about 23982.0636726700. The cubic root of 575139378 is about 831.6189324096.

The spelling of 575139378 in words is "five hundred seventy-five million, one hundred thirty-nine thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 11 22 33 66 121 242 313 363 626 726 939 1878 2531 3443 5062 6886 7593 10329 15186 20658 27841 37873 55682 75746 83523 113619 167046 227238 306251 612502 792203 918753 1584406 1837506 2376609 4753218 8714233 17428466 26142699 52285398 95856563 191713126 287569689 575139378