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53210404240 = 245795018579
BaseRepresentation
bin110001100011100101…
…100101010110010000
312002100022202121022121
4301203211211112100
51332433330413430
640240003344024
73562413654610
oct614345452620
9162308677277
1053210404240
11206259822a4
12a390082014
13502cc120c6
14280ac66a40
1515b664aa7a
hexc63965590

53210404240 has 40 divisors (see below), whose sum is σ = 141387647040. Its totient is φ = 18243566976.

The previous prime is 53210404199. The next prime is 53210404241. The reversal of 53210404240 is 4240401235.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (53210404241) 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, 47508730 + ... + 47509849.

It is an arithmetic number, because the mean of its divisors is an integer number (3534691176).

Almost surely, 253210404240 is an apocalyptic number.

It is an amenable number.

53210404240 is an abundant number, since it is smaller than the sum of its proper divisors (88177242800).

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

53210404240 is a wasteful number, since it uses less digits than its factorization.

53210404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95018599 (or 95018593 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 53210404240 its reverse (4240401235), we get a palindrome (57450805475).

The spelling of 53210404240 in words is "fifty-three billion, two hundred ten million, four hundred four thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 95018579 190037158 380074316 475092895 665130053 760148632 950185790 1330260106 1520297264 1900371580 2660520212 3325650265 3800743160 5321040424 6651300530 7601486320 10642080848 13302601060 26605202120 53210404240