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252885378 = 2342147563
BaseRepresentation
bin11110001001010…
…11100110000010
3122121211220112010
433010223212002
51004214313003
641032113350
76160330104
oct1704534602
9577756463
10252885378
1111a824589
1270835856
1340512b25
142582b574
1517304003
hexf12b982

252885378 has 8 divisors (see below), whose sum is σ = 505770768. Its totient is φ = 84295124.

The previous prime is 252885377. The next prime is 252885379. The reversal of 252885378 is 873588252.

It is an interprime number because it is at equal distance from previous prime (252885377) and next prime (252885379).

It is a sphenic number, since it is the product of 3 distinct primes.

252885378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (252885377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21073776 + ... + 21073787.

It is an arithmetic number, because the mean of its divisors is an integer number (63221346).

Almost surely, 2252885378 is an apocalyptic number.

252885378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252885378 is a wasteful number, since it uses less digits than its factorization.

252885378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42147568.

The product of its digits is 1075200, while the sum is 48.

The square root of 252885378 is about 15902.3702006965. The cubic root of 252885378 is about 632.3748260575.

The spelling of 252885378 in words is "two hundred fifty-two million, eight hundred eighty-five thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 42147563 84295126 126442689 252885378