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25352212120 = 2352203287701
BaseRepresentation
bin10111100111000111…
…000000111010011000
32102102211122211000021
4113213013000322120
5403410131241440
615351401520224
71555152150604
oct274707007230
972384584007
1025352212120
11a82a732224
124ab64a3074
1325104b5561
14132706c504
159d5a9684a
hex5e71c0e98

25352212120 has 32 divisors (see below), whose sum is σ = 57068568720. Its totient is φ = 10136246400.

The previous prime is 25352212097. The next prime is 25352212129. The reversal of 25352212120 is 2121225352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25352212129) 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 7 ways as a sum of consecutive naturals, for example, 55731 + ... + 231970.

Almost surely, 225352212120 is an apocalyptic number.

25352212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25352212120 is an abundant number, since it is smaller than the sum of its proper divisors (31716356600).

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

25352212120 is a wasteful number, since it uses less digits than its factorization.

25352212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289915 (or 289911 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 25352212120 its reverse (2121225352), we get a palindrome (27473437472).

The spelling of 25352212120 in words is "twenty-five billion, three hundred fifty-two million, two hundred twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2203 4406 8812 11015 17624 22030 44060 88120 287701 575402 1150804 1438505 2301608 2877010 5754020 11508040 633805303 1267610606 2535221212 3169026515 5070442424 6338053030 12676106060 25352212120