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10131378 = 237323131
BaseRepresentation
bin100110101001…
…011110110010
3201001201122020
4212221132302
510043201003
61001052310
7152054355
oct46513662
921051566
1010131378
11579a944
123487096
1321395ca
1414ba29c
15d51d53
hex9a97b2

10131378 has 16 divisors (see below), whose sum is σ = 20541216. Its totient is φ = 3330720.

The previous prime is 10131361. The next prime is 10131403. The reversal of 10131378 is 87313101.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11128 + ... + 12003.

It is an arithmetic number, because the mean of its divisors is an integer number (1283826).

Almost surely, 210131378 is an apocalyptic number.

10131378 is an abundant number, since it is smaller than the sum of its proper divisors (10409838).

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

10131378 is a wasteful number, since it uses less digits than its factorization.

10131378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23209.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 10131378 is about 3182.9825635715. The cubic root of 10131378 is about 216.3828515310.

Adding to 10131378 its reverse (87313101), we get a palindrome (97444479).

The spelling of 10131378 in words is "ten million, one hundred thirty-one thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 73 146 219 438 23131 46262 69393 138786 1688563 3377126 5065689 10131378