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125148970 = 2528144537
BaseRepresentation
bin1110111010110…
…01111100101010
322201111020010001
413131121330222
5224014231340
620230213214
73046514542
oct735317452
9281436101
10125148970
1164709301
1235ab420a
131cc0a75b
141289a322
15aec129a
hex7759f2a

125148970 has 16 divisors (see below), whose sum is σ = 226074888. Its totient is φ = 49880320.

The previous prime is 125148941. The next prime is 125148973. The reversal of 125148970 is 79841521.

It is a Cunningham number, because it is equal to 111872+1.

It can be written as a sum of positive squares in 4 ways, for example, as 125148969 + 1 = 11187^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (125148973) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19459 + ... + 25078.

Almost surely, 2125148970 is an apocalyptic number.

125148970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125148970 is a deficient number, since it is larger than the sum of its proper divisors (100925918).

125148970 is a wasteful number, since it uses less digits than its factorization.

125148970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44825.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 125148970 is about 11187.0000446947. Note that the first 4 decimals coincide. The cubic root of 125148970 is about 500.1985478138.

The spelling of 125148970 in words is "one hundred twenty-five million, one hundred forty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 281 562 1405 2810 44537 89074 222685 445370 12514897 25029794 62574485 125148970