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53513220312 = 23322999247829
BaseRepresentation
bin110001110101101000…
…101111000011011000
312010010102120020212200
4301311220233003120
51334043341022222
640330022010200
73603051603366
oct616550570330
9163112506780
1053513220312
11207708aa512
12a455576960
13507a887906
142839170636
1515d3013eac
hexc75a2f0d8

53513220312 has 48 divisors (see below), whose sum is σ = 144980550000. Its totient is φ = 17831720256.

The previous prime is 53513220307. The next prime is 53513220353. The reversal of 53513220312 is 21302231535.

It is a happy number.

53513220312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92014 + ... + 339842.

It is an arithmetic number, because the mean of its divisors is an integer number (3020428125).

Almost surely, 253513220312 is an apocalyptic number.

It is an amenable number.

53513220312 is an abundant number, since it is smaller than the sum of its proper divisors (91467329688).

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

53513220312 is a wasteful number, since it uses less digits than its factorization.

53513220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250840 (or 250833 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 53513220312 its reverse (21302231535), we get a palindrome (74815451847).

The spelling of 53513220312 in words is "fifty-three billion, five hundred thirteen million, two hundred twenty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2999 5998 8997 11996 17994 23992 26991 35988 53982 71976 107964 215928 247829 495658 743487 991316 1486974 1982632 2230461 2973948 4460922 5947896 8921844 17843688 743239171 1486478342 2229717513 2972956684 4459435026 5945913368 6689152539 8918870052 13378305078 17837740104 26756610156 53513220312