Search a number
-
+
25300485 = 335741653
BaseRepresentation
bin110000010000…
…0111000000101
31202121101202000
41200200320011
522434103420
62302135513
7425023230
oct140407005
952541660
1025300485
11133106a1
128581599
13531ac02
143508417
15234b690
hex1820e05

25300485 has 64 divisors (see below), whose sum is σ = 52738560. Its totient is φ = 11266560.

The previous prime is 25300481. The next prime is 25300487. The reversal of 25300485 is 58400352.

It is not a de Polignac number, because 25300485 - 22 = 25300481 is a prime.

It is a super-2 number, since 2×253004852 = 1280229082470450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25300481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38419 + ... + 39071.

It is an arithmetic number, because the mean of its divisors is an integer number (824040).

Almost surely, 225300485 is an apocalyptic number.

It is an amenable number.

25300485 is an abundant number, since it is smaller than the sum of its proper divisors (27438075).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25300485 is a wasteful number, since it uses less digits than its factorization.

25300485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 25300485 is about 5029.9587473457. The cubic root of 25300485 is about 293.5686093059.

The spelling of 25300485 in words is "twenty-five million, three hundred thousand, four hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 41 45 63 105 123 135 189 205 287 315 369 615 653 861 945 1107 1435 1845 1959 2583 3265 4305 4571 5535 5877 7749 9795 12915 13713 17631 22855 26773 29385 38745 41139 68565 80319 88155 123417 133865 187411 205695 240957 401595 562233 617085 722871 937055 1204785 1686699 2811165 3614355 5060097 8433495 25300485