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125432345 = 534971881
BaseRepresentation
bin1110111100111…
…11001000011001
322202000121211102
413132133020121
5224102313340
620240241145
73052104653
oct736371031
9282017742
10125432345
11648921a5
12360101b5
131cca972c
14129316d3
15b02a215
hex779f219

125432345 has 8 divisors (see below), whose sum is σ = 150952200. Its totient is φ = 100056960.

The previous prime is 125432311. The next prime is 125432347. The reversal of 125432345 is 543234521.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 124634896 = 893^2 + 11164^2 .

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

It is not a de Polignac number, because 125432345 - 28 = 125432089 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (125432347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34196 + ... + 37685.

It is an arithmetic number, because the mean of its divisors is an integer number (18869025).

Almost surely, 2125432345 is an apocalyptic number.

It is an amenable number.

125432345 is a deficient number, since it is larger than the sum of its proper divisors (25519855).

125432345 is an equidigital number, since it uses as much as digits as its factorization.

125432345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72235.

The product of its digits is 14400, while the sum is 29.

The square root of 125432345 is about 11199.6582537147. The cubic root of 125432345 is about 500.5757966619.

Adding to 125432345 its reverse (543234521), we get a palindrome (668666866).

The spelling of 125432345 in words is "one hundred twenty-five million, four hundred thirty-two thousand, three hundred forty-five".

Divisors: 1 5 349 1745 71881 359405 25086469 125432345