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25116213 = 382910099
BaseRepresentation
bin101111111001…
…1111000110101
31202021000222010
41133303320311
522412204323
62254154433
7423325053
oct137637065
952230863
1025116213
11131a5201
1284b2a19
135285085
14349b1d3
152311c93
hex17f3e35

25116213 has 8 divisors (see below), whose sum is σ = 33532000. Its totient is φ = 16722288.

The previous prime is 25116211. The next prime is 25116239. The reversal of 25116213 is 31261152.

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

It is not a de Polignac number, because 25116213 - 21 = 25116211 is a prime.

It is a super-2 number, since 2×251162132 = 1261648310922738, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25116213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25116211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2563 + ... + 7536.

It is an arithmetic number, because the mean of its divisors is an integer number (4191500).

Almost surely, 225116213 is an apocalyptic number.

It is an amenable number.

25116213 is a deficient number, since it is larger than the sum of its proper divisors (8415787).

25116213 is a wasteful number, since it uses less digits than its factorization.

25116213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931.

The product of its digits is 360, while the sum is 21.

The square root of 25116213 is about 5011.6078258379. The cubic root of 25116213 is about 292.8541520785.

Adding to 25116213 its reverse (31261152), we get a palindrome (56377365).

The spelling of 25116213 in words is "twenty-five million, one hundred sixteen thousand, two hundred thirteen".

Divisors: 1 3 829 2487 10099 30297 8372071 25116213