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125212213 = 767266977
BaseRepresentation
bin1110111011010…
…01011000110101
322201121102212101
413131221120311
5224023242323
620231422101
73050200120
oct735513065
9281542771
10125212213
1164751875
1235b24931
131cc30489
14128b53b7
15aed4dad
hex7769635

125212213 has 8 divisors (see below), whose sum is σ = 145236032. Its totient is φ = 105722496.

The previous prime is 125212211. The next prime is 125212229. The reversal of 125212213 is 312212521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125212213 - 21 = 125212211 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 (125212211) 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, 133020 + ... + 133957.

It is an arithmetic number, because the mean of its divisors is an integer number (18154504).

Almost surely, 2125212213 is an apocalyptic number.

It is an amenable number.

125212213 is a deficient number, since it is larger than the sum of its proper divisors (20023819).

125212213 is an equidigital number, since it uses as much as digits as its factorization.

125212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267051.

The product of its digits is 240, while the sum is 19.

The square root of 125212213 is about 11189.8263167933. The cubic root of 125212213 is about 500.2827906954.

Adding to 125212213 its reverse (312212521), we get a palindrome (437424734).

The spelling of 125212213 in words is "one hundred twenty-five million, two hundred twelve thousand, two hundred thirteen".

Divisors: 1 7 67 469 266977 1868839 17887459 125212213