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127525025125 = 531020200201
BaseRepresentation
bin111011011000100010…
…1010111010101100101
3110012011102211111100201
41312301011113111211
54042132401301000
6134330103510501
712133121554111
oct1666105272545
9405142744321
10127525025125
114a0a0608953
122086ba58431
13c0441c7b64
14625a8d0741
1534b592c96a
hex1db1157565

127525025125 has 8 divisors (see below), whose sum is σ = 159151231512. Its totient is φ = 102020020000.

The previous prime is 127525025123. The next prime is 127525025143. The reversal of 127525025125 is 521520525721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12662325729 + 114862699396 = 112527^2 + 338914^2 .

It is not a de Polignac number, because 127525025125 - 21 = 127525025123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127525025123) 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, 510099976 + ... + 510100225.

It is an arithmetic number, because the mean of its divisors is an integer number (19893903939).

Almost surely, 2127525025125 is an apocalyptic number.

It is an amenable number.

127525025125 is a deficient number, since it is larger than the sum of its proper divisors (31626206387).

127525025125 is an equidigital number, since it uses as much as digits as its factorization.

127525025125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020200216 (or 1020200206 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 37.

The spelling of 127525025125 in words is "one hundred twenty-seven billion, five hundred twenty-five million, twenty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 1020200201 5101001005 25505005025 127525025125