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125400224 = 253918757
BaseRepresentation
bin1110111100101…
…11010010100000
322201221222202202
413132113102200
5224100301344
620235432332
73051612215
oct736272240
9281858682
10125400224
1164870054
1235bb56a8
131cc97c21
1412923b0c
15b02094e
hex77974a0

125400224 has 12 divisors (see below), whose sum is σ = 246881754. Its totient is φ = 62700096.

The previous prime is 125400221. The next prime is 125400227. The reversal of 125400224 is 422004521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125400221) and next prime (125400227).

It can be written as a sum of positive squares in only one way, i.e., 92544400 + 32855824 = 9620^2 + 5732^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125400196 and 125400205.

It is not an unprimeable number, because it can be changed into a prime (125400221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959347 + ... + 1959410.

Almost surely, 2125400224 is an apocalyptic number.

It is an amenable number.

125400224 is a deficient number, since it is larger than the sum of its proper divisors (121481530).

125400224 is an equidigital number, since it uses as much as digits as its factorization.

125400224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3918767 (or 3918759 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 125400224 is about 11198.2241449258. The cubic root of 125400224 is about 500.5330634847.

Adding to 125400224 its reverse (422004521), we get a palindrome (547404745).

The spelling of 125400224 in words is "one hundred twenty-five million, four hundred thousand, two hundred twenty-four".

Divisors: 1 2 4 8 16 32 3918757 7837514 15675028 31350056 62700112 125400224