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25093420 = 22511167683
BaseRepresentation
bin101111110111…
…0010100101100
31202012212200221
41133232110230
522410442140
62253501124
7423201442
oct137562454
952185627
1025093420
111318a070
1284a17a4
1352778a1
143492b92
15230a14a
hex17ee52c

25093420 has 48 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 9056960.

The previous prime is 25093379. The next prime is 25093421. The reversal of 25093420 is 2439052.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25093421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36399 + ... + 37081.

It is an arithmetic number, because the mean of its divisors is an integer number (1206576).

Almost surely, 225093420 is an apocalyptic number.

25093420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25093420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28957824).

25093420 is an abundant number, since it is smaller than the sum of its proper divisors (32822228).

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

25093420 is a wasteful number, since it uses less digits than its factorization.

25093420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 25093420 is about 5009.3332889717. Note that the first 3 decimals coincide. The cubic root of 25093420 is about 292.7655367432.

It can be divided in two parts, 2509 and 3420, that added together give a square (5929 = 772).

The spelling of 25093420 in words is "twenty-five million, ninety-three thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 167 220 334 668 683 835 1366 1670 1837 2732 3340 3415 3674 6830 7348 7513 9185 13660 15026 18370 30052 36740 37565 75130 114061 150260 228122 456244 570305 1140610 1254671 2281220 2509342 5018684 6273355 12546710 25093420