Search a number
-
+
25412790 = 23513173833
BaseRepresentation
bin110000011110…
…0010010110110
31202211002210110
41200330102312
523001202130
62304403450
7426001524
oct140742266
952732713
1025412790
1113388007
128616586
13535a070
143537314
15236eab0
hex183c4b6

25412790 has 64 divisors (see below), whose sum is σ = 69564096. Its totient is φ = 5885952.

The previous prime is 25412789. The next prime is 25412791. The reversal of 25412790 is 9721452.

It is an interprime number because it is at equal distance from previous prime (25412789) and next prime (25412791).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25412791) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4714 + ... + 8546.

It is an arithmetic number, because the mean of its divisors is an integer number (1086939).

Almost surely, 225412790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25412790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34782048).

25412790 is an abundant number, since it is smaller than the sum of its proper divisors (44151306).

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

25412790 is a wasteful number, since it uses less digits than its factorization.

25412790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 25412790 is about 5041.1099968162. The cubic root of 25412790 is about 294.0023369706.

The spelling of 25412790 in words is "twenty-five million, four hundred twelve thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 17 26 30 34 39 51 65 78 85 102 130 170 195 221 255 390 442 510 663 1105 1326 2210 3315 3833 6630 7666 11499 19165 22998 38330 49829 57495 65161 99658 114990 130322 149487 195483 249145 298974 325805 390966 498290 651610 747435 847093 977415 1494870 1694186 1954830 2541279 4235465 5082558 8470930 12706395 25412790