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253725312 = 2733132111
BaseRepresentation
bin11110001111110…
…00101010000000
3122200102120200210
433013320222000
51004423202222
641102114120
76200425641
oct1707705200
9580376623
10253725312
11120248645
1270b7b940
1340748229
14259a96c8
151741cd0c
hexf1f8a80

253725312 has 64 divisors (see below), whose sum is σ = 676431360. Its totient is φ = 84264960.

The previous prime is 253725301. The next prime is 253725313. The reversal of 253725312 is 213527352.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 253725312.

It is not an unprimeable number, because it can be changed into a prime (253725313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119137 + ... + 121247.

It is an arithmetic number, because the mean of its divisors is an integer number (10569240).

Almost surely, 2253725312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253725312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338215680).

253725312 is an abundant number, since it is smaller than the sum of its proper divisors (422706048).

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

253725312 is a wasteful number, since it uses less digits than its factorization.

253725312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2429 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 253725312 is about 15928.7573903302. The cubic root of 253725312 is about 633.0741760244.

The spelling of 253725312 in words is "two hundred fifty-three million, seven hundred twenty-five thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 313 384 626 939 1252 1878 2111 2504 3756 4222 5008 6333 7512 8444 10016 12666 15024 16888 20032 25332 30048 33776 40064 50664 60096 67552 101328 120192 135104 202656 270208 405312 660743 810624 1321486 1982229 2642972 3964458 5285944 7928916 10571888 15857832 21143776 31715664 42287552 63431328 84575104 126862656 253725312