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125000115 = 3571117371
BaseRepresentation
bin1110111001101…
…01100110110011
322201012122220220
413130311212303
5224000000430
620223104123
73045324552
oct734654663
9281178826
10125000115
1164617489
1235a42043
131cb87a86
141285bd99
15ae92110
hex77359b3

125000115 has 16 divisors (see below), whose sum is σ = 202818816. Its totient is φ = 65727200.

The previous prime is 125000089. The next prime is 125000149. The reversal of 125000115 is 511000521.

It is not a de Polignac number, because 125000115 - 29 = 124999603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 125000094 and 125000103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57621 + ... + 59750.

It is an arithmetic number, because the mean of its divisors is an integer number (12676176).

Almost surely, 2125000115 is an apocalyptic number.

125000115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125000115 is a deficient number, since it is larger than the sum of its proper divisors (77818701).

125000115 is a wasteful number, since it uses less digits than its factorization.

125000115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117450.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 125000115 is about 11180.3450304541. The cubic root of 125000115 is about 500.0001533333. Note that the first 3 decimals are identical.

Adding to 125000115 its reverse (511000521), we get a palindrome (636000636).

The spelling of 125000115 in words is "one hundred twenty-five million, one hundred fifteen", and thus it is an aban number.

Divisors: 1 3 5 15 71 213 355 1065 117371 352113 586855 1760565 8333341 25000023 41666705 125000115