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25378080 = 2535721383
BaseRepresentation
bin110000011001…
…1110100100000
31202202100011220
41200303310200
522444044310
62303535040
7425465400
oct140636440
952670156
1025378080
1113363a22
1285ba480
135347320
143528800
152364670
hex1833d20

25378080 has 288 divisors, whose sum is σ = 101352384. Its totient is φ = 5289984.

The previous prime is 25378061. The next prime is 25378097. The reversal of 25378080 is 8087352.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 305719 + ... + 305801.

It is an arithmetic number, because the mean of its divisors is an integer number (351918).

Almost surely, 225378080 is an apocalyptic number.

25378080 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 25378080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50676192).

25378080 is an abundant number, since it is smaller than the sum of its proper divisors (75974304).

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

25378080 is a wasteful number, since it uses less digits than its factorization.

25378080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 25378080 is about 5037.6661262930. Note that the first 3 decimals coincide. The cubic root of 25378080 is about 293.8684218473.

The spelling of 25378080 in words is "twenty-five million, three hundred seventy-eight thousand, eighty".