Search a number
-
+
25034940 = 22335737179
BaseRepresentation
bin101111110000…
…0000010111100
31202002220111000
41133200002330
522402104230
62252330300
7422536110
oct137400274
952086430
1025034940
111314a137
128473990
135257098
143479740
1522e7b60
hex17e00bc

25034940 has 192 divisors, whose sum is σ = 91929600. Its totient is φ = 5536512.

The previous prime is 25034923. The next prime is 25034941. The reversal of 25034940 is 4943052.

It is a super-3 number, since 3×250349403 (a number of 23 digits) contains 333 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 (25034941) 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, 139771 + ... + 139949.

It is an arithmetic number, because the mean of its divisors is an integer number (478800).

Almost surely, 225034940 is an apocalyptic number.

25034940 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 25034940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45964800).

25034940 is an abundant number, since it is smaller than the sum of its proper divisors (66894660).

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

25034940 is a wasteful number, since it uses less digits than its factorization.

25034940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 25034940 is about 5003.4927800488. The cubic root of 25034940 is about 292.5379306497.

Adding to 25034940 its reverse (4943052), we get a palindrome (29977992).

The spelling of 25034940 in words is "twenty-five million, thirty-four thousand, nine hundred forty".