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125975304900 = 223252118312
BaseRepresentation
bin111010101010010110…
…1101001101011000100
3110001011102202112212100
41311110231221223010
54030444134224100
6133512223552100
712046533265254
oct1652455515304
9401142675770
10125975304900
1149475859135
12204b8a5b630
13bb58117943
146150b67964
153424861400
hex1d54b69ac4

125975304900 has 81 divisors (see below), whose sum is σ = 394895972653. Its totient is φ = 33590575200.

The previous prime is 125975304893. The next prime is 125975304907. The reversal of 125975304900 is 9403579521.

It is a happy number.

The square root of 125975304900 is 354930.

It is a perfect power (a square), and thus also a powerful number.

125975304900 is a `hidden beast` number, since 1 + 2 + 597 + 53 + 0 + 4 + 9 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (125975304893) and next prime (125975304907).

It can be written as a sum of positive squares in only one way, i.e., 45351109764 + 80624195136 = 212958^2 + 283944^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125975304907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10641985 + ... + 10653815.

Almost surely, 2125975304900 is an apocalyptic number.

125975304900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125975304900 is the 354930-th square number.

It is an amenable number.

125975304900 is an abundant number, since it is smaller than the sum of its proper divisors (268920667753).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125975304900 is an equidigital number, since it uses as much as digits as its factorization.

125975304900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23682 (or 11841 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The spelling of 125975304900 in words is "one hundred twenty-five billion, nine hundred seventy-five million, three hundred four thousand, nine hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 11831 23662 35493 47324 59155 70986 106479 118310 141972 177465 212958 236620 295775 354930 425916 532395 591550 709860 887325 1064790 1183100 1774650 2129580 2661975 3549300 5323950 10647900 139972561 279945122 419917683 559890244 699862805 839835366 1259753049 1399725610 1679670732 2099588415 2519506098 2799451220 3499314025 4199176830 5039012196 6298765245 6998628050 8398353660 10497942075 12597530490 13997256100 20995884150 25195060980 31493826225 41991768300 62987652450 125975304900