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25028982 = 23211831523
BaseRepresentation
bin101111101111…
…0100101110110
31202002121022100
41133132211312
522401411412
62252242530
7422512536
oct137364566
952077270
1025028982
1113145710
128470446
135254464
1434774c6
1522e5edc
hex17de976

25028982 has 48 divisors (see below), whose sum is σ = 59911488. Its totient is φ = 7488240.

The previous prime is 25028977. The next prime is 25029019. The reversal of 25028982 is 28982052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15673 + ... + 17195.

It is an arithmetic number, because the mean of its divisors is an integer number (1248156).

Almost surely, 225028982 is an apocalyptic number.

25028982 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25028982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29955744).

25028982 is an abundant number, since it is smaller than the sum of its proper divisors (34882506).

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

25028982 is a wasteful number, since it uses less digits than its factorization.

25028982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25028982 is about 5002.8973605302. The cubic root of 25028982 is about 292.5147220291.

The spelling of 25028982 in words is "twenty-five million, twenty-eight thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 83 99 166 198 249 498 747 913 1494 1523 1826 2739 3046 4569 5478 8217 9138 13707 16434 16753 27414 33506 50259 100518 126409 150777 252818 301554 379227 758454 1137681 1390499 2275362 2780998 4171497 8342994 12514491 25028982