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158130825 = 35219110969
BaseRepresentation
bin10010110110011…
…10001010001001
3102000112212201020
421123032022021
5310440141300
623405143053
73630042546
oct1133161211
9360485636
10158130825
1181296036
1244b5aa89
13269b7a48
1417003bcd
15dd388a0
hex96ce289

158130825 has 24 divisors (see below), whose sum is σ = 275205600. Its totient is φ = 79896960.

The previous prime is 158130799. The next prime is 158130827. The reversal of 158130825 is 528031851.

It is a happy number.

It is not a de Polignac number, because 158130825 - 26 = 158130761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (158130827) 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 23 ways as a sum of consecutive naturals, for example, 54060 + ... + 56909.

It is an arithmetic number, because the mean of its divisors is an integer number (11466900).

Almost surely, 2158130825 is an apocalyptic number.

158130825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158130825 is a deficient number, since it is larger than the sum of its proper divisors (117074775).

158130825 is a wasteful number, since it uses less digits than its factorization.

158130825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111001 (or 110996 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 158130825 is about 12575.0079522838. The cubic root of 158130825 is about 540.7611864690.

The spelling of 158130825 in words is "one hundred fifty-eight million, one hundred thirty thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 19 25 57 75 95 285 475 1425 110969 332907 554845 1664535 2108411 2774225 6325233 8322675 10542055 31626165 52710275 158130825