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25030772928 = 26357317417
BaseRepresentation
bin10111010011111100…
…110100100011000000
32101121102211000100000
4113103330310203000
5402230334213203
615255440200000
71544200026240
oct272374644300
971542730300
1025030772928
11a6852451a7
124a26909000
13248ba1c255
1412d64b7b20
159b77504a3
hex5d3f348c0

25030772928 has 336 divisors, whose sum is σ = 87787341824. Its totient is φ = 6920017920.

The previous prime is 25030772927. The next prime is 25030772981. The reversal of 25030772928 is 82927703052.

25030772928 is a `hidden beast` number, since 2 + 50 + 307 + 7 + 292 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is not an unprimeable number, because it can be changed into a prime (25030772927) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3371076 + ... + 3378492.

Almost surely, 225030772928 is an apocalyptic number.

25030772928 is a gapful number since it is divisible by the number (28) 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 25030772928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43893670912).

25030772928 is an abundant number, since it is smaller than the sum of its proper divisors (62756568896).

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

25030772928 is an equidigital number, since it uses as much as digits as its factorization.

25030772928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7482 (or 7460 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 25030772928 in words is "twenty-five billion, thirty million, seven hundred seventy-two thousand, nine hundred twenty-eight".