Search a number
-
+
25470313 = 1131113661
BaseRepresentation
bin110000100101…
…0010101101001
31202221000200221
41201022111221
523010022223
62305530041
7426331321
oct141122551
952830627
1025470313
1113417250
128643921
13537a2bb
143550281
152381b5d
hex184a569

25470313 has 16 divisors (see below), whose sum is σ = 28979712. Its totient is φ = 22176000.

The previous prime is 25470257. The next prime is 25470337. The reversal of 25470313 is 31307452.

It is not a de Polignac number, because 25470313 - 213 = 25462121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25470343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38203 + ... + 38863.

It is an arithmetic number, because the mean of its divisors is an integer number (1811232).

Almost surely, 225470313 is an apocalyptic number.

It is an amenable number.

25470313 is a deficient number, since it is larger than the sum of its proper divisors (3509399).

25470313 is a wasteful number, since it uses less digits than its factorization.

25470313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 25470313 is about 5046.8121621475. The cubic root of 25470313 is about 294.2239990047.

Adding to 25470313 its reverse (31307452), we get a palindrome (56777765).

The spelling of 25470313 in words is "twenty-five million, four hundred seventy thousand, three hundred thirteen".

Divisors: 1 11 31 113 341 661 1243 3503 7271 20491 38533 74693 225401 821623 2315483 25470313