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125450061 = 3119533989
BaseRepresentation
bin1110111101000…
…11011101001101
322202001112010120
413132203131031
5224103400221
620240455153
73052210422
oct736433515
9282045116
10125450061
11648a4540
123601a4b9
131ccb4809
1412937d49
15b0305c6
hex77a374d

125450061 has 16 divisors (see below), whose sum is σ = 182710080. Its totient is φ = 75931520.

The previous prime is 125450057. The next prime is 125450071. The reversal of 125450061 is 160054521.

It is a cyclic number.

It is not a de Polignac number, because 125450061 - 22 = 125450057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125450011) 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 15 ways as a sum of consecutive naturals, for example, 29455 + ... + 33443.

It is an arithmetic number, because the mean of its divisors is an integer number (11419380).

Almost surely, 2125450061 is an apocalyptic number.

125450061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125450061 is a deficient number, since it is larger than the sum of its proper divisors (57260019).

125450061 is a wasteful number, since it uses less digits than its factorization.

125450061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 125450061 is about 11200.4491427799. The cubic root of 125450061 is about 500.5993625753.

It can be divided in two parts, 1254 and 50061, that added together give a palindrome (51315).

The spelling of 125450061 in words is "one hundred twenty-five million, four hundred fifty thousand, sixty-one".

Divisors: 1 3 11 33 953 2859 3989 10483 11967 31449 43879 131637 3801517 11404551 41816687 125450061