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125350213 = 157798409
BaseRepresentation
bin1110111100010…
…11000101000101
322201212110011111
413132023011011
5224042201323
620234405021
73051313342
oct736130505
9281773144
10125350213
116483651a
1235b90771
131cc7b231
141290d7c9
15b010c0d
hex778b145

125350213 has 4 divisors (see below), whose sum is σ = 126148780. Its totient is φ = 124551648.

The previous prime is 125350189. The next prime is 125350217. The reversal of 125350213 is 312053521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 312053521 = 1324004117.

It can be written as a sum of positive squares in 2 ways, for example, as 70930084 + 54420129 = 8422^2 + 7377^2 .

It is a cyclic number.

It is not a de Polignac number, because 125350213 - 217 = 125219141 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 (125350217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399048 + ... + 399361.

It is an arithmetic number, because the mean of its divisors is an integer number (31537195).

Almost surely, 2125350213 is an apocalyptic number.

It is an amenable number.

125350213 is a deficient number, since it is larger than the sum of its proper divisors (798567).

125350213 is an equidigital number, since it uses as much as digits as its factorization.

125350213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798566.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 125350213 is about 11195.9909342586. The cubic root of 125350213 is about 500.4665152583.

The spelling of 125350213 in words is "one hundred twenty-five million, three hundred fifty thousand, two hundred thirteen".

Divisors: 1 157 798409 125350213