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125080090 = 2512508009
BaseRepresentation
bin1110111010010…
…01001000011010
322201100201121221
413131021020122
5224010030330
620224522254
73046106662
oct735111032
9281321557
10125080090
1164671583
1235a8038a
131cbb52b5
141287d1a2
15aeaab7a
hex774921a

125080090 has 8 divisors (see below), whose sum is σ = 225144180. Its totient is φ = 50032032.

The previous prime is 125080069. The next prime is 125080093. The reversal of 125080090 is 90080521.

It can be written as a sum of positive squares in 2 ways, for example, as 123854641 + 1225449 = 11129^2 + 1107^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125080093) 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, 6253995 + ... + 6254014.

Almost surely, 2125080090 is an apocalyptic number.

125080090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125080090 is a deficient number, since it is larger than the sum of its proper divisors (100064090).

125080090 is a wasteful number, since it uses less digits than its factorization.

125080090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508016.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 125080090 is about 11183.9210476469. The cubic root of 125080090 is about 500.1067638680.

The spelling of 125080090 in words is "one hundred twenty-five million, eighty thousand, ninety".

Divisors: 1 2 5 10 12508009 25016018 62540045 125080090