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125442027 = 343149957
BaseRepresentation
bin1110111101000…
…01011111101011
322202001010010000
413132201133223
5224103121102
620240354043
73052145124
oct736413753
9282033100
10125442027
11648994a7
1236015923
131ccb0c69
141293504b
15b02d01c
hex77a17eb

125442027 has 20 divisors (see below), whose sum is σ = 193437376. Its totient is φ = 80928720.

The previous prime is 125442017. The next prime is 125442041. The reversal of 125442027 is 720244521.

It is not a de Polignac number, because 125442027 - 210 = 125441003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125442017) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22468 + ... + 27489.

Almost surely, 2125442027 is an apocalyptic number.

125442027 is a deficient number, since it is larger than the sum of its proper divisors (67995349).

125442027 is an equidigital number, since it uses as much as digits as its factorization.

125442027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50000 (or 49991 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 125442027 is about 11200.0904907059. The cubic root of 125442027 is about 500.5886759825.

Adding to 125442027 its reverse (720244521), we get a palindrome (845686548).

The spelling of 125442027 in words is "one hundred twenty-five million, four hundred forty-two thousand, twenty-seven".

Divisors: 1 3 9 27 31 81 93 279 837 2511 49957 149871 449613 1348839 1548667 4046517 4646001 13938003 41814009 125442027