Search a number
-
+
25057238 = 2193189239
BaseRepresentation
bin101111110010…
…1011111010110
31202011001001212
41133211133112
522403312423
62253021422
7422661113
oct137453726
952131055
1025057238
1113164968
128484872
13526428b
14348390a
1522ee578
hex17e57d6

25057238 has 32 divisors (see below), whose sum is σ = 41472000. Its totient is φ = 11309760.

The previous prime is 25057237. The next prime is 25057259. The reversal of 25057238 is 83275052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25057231) 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 15 ways as a sum of consecutive naturals, for example, 104723 + ... + 104961.

It is an arithmetic number, because the mean of its divisors is an integer number (1296000).

Almost surely, 225057238 is an apocalyptic number.

25057238 is a deficient number, since it is larger than the sum of its proper divisors (16414762).

25057238 is a wasteful number, since it uses less digits than its factorization.

25057238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 25057238 is about 5005.7205275564. The cubic root of 25057238 is about 292.6247569694.

The spelling of 25057238 in words is "twenty-five million, fifty-seven thousand, two hundred thirty-eight".

Divisors: 1 2 19 31 38 62 89 178 239 478 589 1178 1691 2759 3382 4541 5518 7409 9082 14818 21271 42542 52421 104842 140771 281542 404149 659401 808298 1318802 12528619 25057238