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25271212000 = 25536317803
BaseRepresentation
bin10111100010010010…
…000001011111100000
32102020012020120201211
4113202102001133200
5403223412241000
615335345435504
71553146520626
oct274222013740
972205216654
1025271212000
11a798a38681
124a9333bb94
1324c9794ba8
14131a3c5516
159cd8e67ba
hex5e24817e0

25271212000 has 48 divisors (see below), whose sum is σ = 62091377712. Its totient is φ = 10108483200.

The previous prime is 25271211913. The next prime is 25271212007. The reversal of 25271212000 is 21217252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25271212007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3154902 + ... + 3162901.

It is an arithmetic number, because the mean of its divisors is an integer number (1293570369).

Almost surely, 225271212000 is an apocalyptic number.

25271212000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25271212000 is an abundant number, since it is smaller than the sum of its proper divisors (36820165712).

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

25271212000 is an equidigital number, since it uses as much as digits as its factorization.

25271212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317828 (or 6317810 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

Adding to 25271212000 its reverse (21217252), we get a palindrome (25292429252).

The spelling of 25271212000 in words is "twenty-five billion, two hundred seventy-one million, two hundred twelve thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 6317803 12635606 25271212 31589015 50542424 63178030 101084848 126356060 157945075 202169696 252712120 315890150 505424240 631780300 789725375 1010848480 1263560600 1579450750 2527121200 3158901500 5054242400 6317803000 12635606000 25271212000