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125887331 = 197193319
BaseRepresentation
bin1111000000011…
…10001101100011
322202212201221202
413200032031203
5224211343311
620254111415
73056011313
oct740161543
9282781852
10125887331
1165073019
12361ab56b
132010885b
1412a0d443
15b0b9e3b
hex780e363

125887331 has 8 divisors (see below), whose sum is σ = 134380800. Its totient is φ = 117580680.

The previous prime is 125887313. The next prime is 125887339. The reversal of 125887331 is 133788521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125887331 - 222 = 121693027 is a prime.

It is a super-2 number, since 2×1258873312 = 31695240212607122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125887339) 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 7 ways as a sum of consecutive naturals, for example, 45311 + ... + 48008.

It is an arithmetic number, because the mean of its divisors is an integer number (16797600).

Almost surely, 2125887331 is an apocalyptic number.

125887331 is a deficient number, since it is larger than the sum of its proper divisors (8493469).

125887331 is an equidigital number, since it uses as much as digits as its factorization.

125887331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93409.

The product of its digits is 40320, while the sum is 38.

The square root of 125887331 is about 11219.9523617527. The cubic root of 125887331 is about 501.1803194993.

The spelling of 125887331 in words is "one hundred twenty-five million, eight hundred eighty-seven thousand, three hundred thirty-one".

Divisors: 1 19 71 1349 93319 1773061 6625649 125887331