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25113500140 = 2251379165511
BaseRepresentation
bin10111011000111000…
…011001100111101100
32101211012110222201211
4113120320121213230
5402413024001030
615311553244204
71546223141401
oct273070314754
971735428654
1025113500140
11a717a093a3
124a4a563664
1324a2bc5a71
1413034902a8
159beb4212a
hex5d8e199ec

25113500140 has 24 divisors (see below), whose sum is σ = 53123307552. Its totient is φ = 9972074880.

The previous prime is 25113500119. The next prime is 25113500143. The reversal of 25113500140 is 4100531152.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25113500143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4580016 + ... + 4585495.

It is an arithmetic number, because the mean of its divisors is an integer number (2213471148).

Almost surely, 225113500140 is an apocalyptic number.

25113500140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25113500140 is an abundant number, since it is smaller than the sum of its proper divisors (28009807412).

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

25113500140 is a wasteful number, since it uses less digits than its factorization.

25113500140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9165657 (or 9165655 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The spelling of 25113500140 in words is "twenty-five billion, one hundred thirteen million, five hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 9165511 18331022 36662044 45827555 91655110 183310220 1255675007 2511350014 5022700028 6278375035 12556750070 25113500140