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253745412 = 22321145451
BaseRepresentation
bin11110001111111…
…01100100000100
3122200110121021020
433013331210010
51004424323122
641102351140
76200541354
oct1707754404
9580417236
10253745412
11120261758
1270b8b4b0
134075441b
14259b2b64
1517423c5c
hexf1fd904

253745412 has 12 divisors (see below), whose sum is σ = 592072656. Its totient is φ = 84581800.

The previous prime is 253745381. The next prime is 253745413. The reversal of 253745412 is 214547352.

253745412 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2537454122 = 128773468222099488, which contains 22 as substring.

253745412 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (253745413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10572714 + ... + 10572737.

It is an arithmetic number, because the mean of its divisors is an integer number (49339388).

Almost surely, 2253745412 is an apocalyptic number.

It is an amenable number.

253745412 is an abundant number, since it is smaller than the sum of its proper divisors (338327244).

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

253745412 is a wasteful number, since it uses less digits than its factorization.

253745412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21145458 (or 21145456 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 253745412 is about 15929.3883121732. The cubic root of 253745412 is about 633.0908928626.

The spelling of 253745412 in words is "two hundred fifty-three million, seven hundred forty-five thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 21145451 42290902 63436353 84581804 126872706 253745412